Common use of Filing Obligations Clause in Contracts

Filing Obligations. 109 Section 13.02 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 Form 10-K Filings................................................................................112 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 120 Section 13.02 Form 8-K Filings.................................................................................110 .........................................121 Section 13.03 Form 10-D Filings................................................................................111 ........................................123 Section 13.04 Form 10-K Filings................................................................................112 ........................................124 Section 13.05 Form 15 Filing...................................................................................114 ...........................................126 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 Report .............................126 Secti▇▇ ▇▇.▇▇ ▇eport on Assessment of Compliance and Attestation.................................................. .......127 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 ...................128 -iv- TABLE OF CONTENTS ----------------- (Continued) SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National AssociationTrust Company) Exhibit L-2 L-1 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 L-2 Form of Request for Release of Documents (JPMorgan Chase BankThe Bank of New York Trust Company, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure -v- TABLE OF CONTENTS ----------------- (Continued) Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flow Servicing A▇▇▇▇bit Q Flow Servicing Agreement▇▇▇t, dated ▇▇▇ed as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30July 1, 20062004, between Wells Fargo Bank, National Association Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r ▇▇▇▇gage Loan Purchase Agreement, dated as of July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit T ▇▇▇▇▇ment Reg AB, dated as of January 1, 2006, between Goldman Sachs Mortgage Company and Countrywide Home Loans, ▇▇c. Exhibit U Amended and Restated Master Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T GreenPoint Mortgage Corporation Funding, Inc. and Goldman Sachs Mortgage Company Exhibit V ▇▇▇▇▇cing Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit W ▇▇▇ ▇e▇▇▇▇'s Purchase, Warranties and Servicing Agreement, dated as of April 1, 2006, between Goldman Sachs Mortgage Company and Wachovia Mort▇▇▇▇ ▇▇rporation THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September January 1, 2006 2007 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANKTHE BANK OF NEW YORK TRUST COMPANY, NATIONAL ASSOCIATION ("JPMorganBNY"), as a custodian (Deutsche Bank, JPMorgan BNY and U.S. Bank, each as a "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATIONASSOCIATION ("Wells Fargo"), as master servicer (in suc▇ ▇▇▇acity▇▇cer (in such capacity, the "Master ServicerS▇▇▇▇▇er"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 112 Section 13.02 Form 8-K Filings.................................................................................110 113 Section 13.03 Form 10-D Filings................................................................................111 114 Section 13.04 Form 10-K Filings................................................................................112 115 Section 13.05 Form 15 Filing...................................................................................114 117 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 117 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ...............................................118 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES 119 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase The Bank of New York Trust Company, National Association) Exhibit L-4 Form of Request for Release of Documents (Wells Fargo Bank, National Association) Exhibit M Form 8-K Disclosure D▇▇▇▇▇sure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flow Servicing Agre▇▇▇▇bit Q Flow Servicing Agreement▇, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R Amen▇▇▇ ▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r ▇ Restated Master Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T GreenPoint Mortgage Corporation Funding, Inc. and Goldman Sachs Mortgage Company Exhibit S Servicing Agreement, ▇▇▇▇▇ ▇▇ ▇▇ November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit T Second Amended and ▇▇▇▇▇▇▇d Flow Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit U Master Mortgage Loa▇ ▇▇▇▇▇a▇▇ ▇▇d Interim Servicing Agreement, dated as of March 24, 2004, between First National Bank of Nevada and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September November 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE THE BANK OF NEW YORK TRUST COMPANY, NATIONAL ASSOCIATION ("BNY"), as a custodian, WELLS FARGO BANK, NATIONAL ASSOCIATION ("JPMorganWells Fargo"), as a custodian custo▇▇▇▇ (Deutsche Bank, JPMorgan BNY, U.S. Bank and U.S. BankW▇▇▇▇ Fargo, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATIONan▇ ▇▇▇LS FARGO, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master ServicerSer▇▇▇▇▇"), and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 160 Section 13.02 12.02. Form 10-D Reporting..............................................................................162 Section 12.03. Form 8-K Filings.................................................................................110 Reporting...............................................................................163 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 12.04. Form 10-K Filings................................................................................112 Reporting..............................................................................164 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 12.05. Sarbanes-Oxley Certification.....................................................................114 166 Section 13.07 Report 12.06. Reports on Assessment of Compliance and Attestation.................................................. ..............................................166 Section 13.08 12.07. Use of Subservicers Subcontractors............................................................................168 Section 12.08. Indemnification by the Master Servicer and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS the Securities Administrator..........................169 Section 12.09. Indemnification by the Trustee and the Custodian.................................................170 ATTACHMENTS Exhibit A Form Forms of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Residual Certificate Transfer Affidavit (Transferee) Exhibit C Form of Class R, Class RC and Class RX Certificates Residual Certificate Transfer Affidavit (Transferor) Exhibit D Form of Class X Certificate Swap Agreement Exhibit E Form List of Initial Certification of Custodian Purchase and Servicing Agreements Exhibit F Form List of Document Certification and Exception Report of Custodian Custodial Agreements Exhibit G Form Assignment and Notice of Residual Transfer Affidavit with respect to each Additional Collateral Mortgage Loan Exhibit H Form of Transferor Rule 144A Transfer Certificate Exhibit I Form of Rule 144A Purchaser's Letter for Institutional Accredited Investors Exhibit J-1 J Form of Back-up Certification (Master Servicer) ERISA Transfer Affidavit Exhibit J-2 K Form of Back-up Letter of Representations with the Depository Trust Company Exhibit L-1 Form of Initial Custodian Certification (Securities Administrator) Exhibit K L-2 Form of Final Custodian Certification Exhibit M Assignment and Notice of Transfer with respect to each Additional Collateral Mortgage Loan Exhibit N Additional Disclosure Required Under Regulation AB Exhibit O Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 P Additional Disclosure Notification Exhibit Q Glossary of Terms for Standard & Poor's LEVELS(R) Version 5.7 File Format Exhibit R Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Lost Note Affidavit Schedule A Mortgage Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing AgreementSchedule Schedule B Principal Balances Schedule This POOLING AND SERVICING AGREEMENT, dated as of January April 1, 20062006 (the "Agreement"), between Avelo Mortgageby and among MORGAN STANLEY CAPITAL I INC., L.L.C. and Goldman Sachs Mortgage Company Exhibit R a Delaware corporation, as depositor (▇▇▇ "▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September 1, 2006 (this "Agreementor"), is hereby executed by and among GS MORTGAGE SECURITIES CORP.LASALLE BANK NATIONAL ASSOCIATION, a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank")national banking association, as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), and as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in sucits separate capacities ▇▇ ▇▇▇acity, ster servicer (the "Master Servicer"), and as securities administrator (in such capacity, the "Securities Administrator") and, in its capacity as Securities Administrator, as auction administrator (the "Auction Administrator") and acknowledged by MORGAN STANLEY MORTGAGE CAPITAL INC., a New York corporation, as se▇▇▇▇ (t▇▇ "▇▇▇ler"), for purposes of Section 2.05.

Filing Obligations. 109 165 Section 13.02 11.02 Form 10-D Filings...........................................................165 Section 11.03 Form 8-K Filings.................................................................................110 ............................................................166 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 11.04 Form 10-K Filings................................................................................112 ...........................................................167 Section 13.05 11.05 S▇▇▇▇▇▇▇-▇▇▇▇▇ Certification................................................167 Section 11.06 Form 15 Filing...................................................................................114 ..............................................................168 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 11.07 Report on Assessment of Compliance and Attestation.................................................. ..........................168 Section 13.08 11.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit ......................................170 Section 11.09 Amendments..................................................................171 Exhibits -------- EXHIBIT A Forms of Certificates EXHIBIT A-1 Form of Class A, 1-A Certificate EXHIBIT A-2 Form of Class M and 2-A-1 Certificate EXHIBIT A-3 Form of Class 2-A-2 Certificate EXHIBIT A-4 Form of Class 2-A-3 Certificate EXHIBIT A-5 Form of Class 3-A-1 Certificate EXHIBIT A-6 Form of Class 3-A-2 Certificate EXHIBIT A-7 Form of Class M-1 Certificate EXHIBIT A-8 Form of Class M-2 Certificate EXHIBIT A-9 Form of Class M-3 Certificate EXHIBIT A-10 Form of Class M-4 Certificate EXHIBIT A-11 Form of Class M-5 Certificate EXHIBIT A-12 Form of Class M-6 Certificate EXHIBIT A-13 Form of Class M-7 Certificate EXHIBIT A-14 Form of Class M-8 Certificate EXHIBIT A-15 Form of Class B Certificates Exhibit Certificate EXHIBIT B Form of Class P Certificates Exhibit Certificate EXHIBIT C Form of Class R, Class RC and Class RX Certificates Exhibit C Certificate EXHIBIT D Form of Class X A-R Certificate Exhibit EXHIBIT E Form of Tax Matters Person Certificate EXHIBIT F Mortgage Loan Schedule EXHIBIT F-1 List of Mortgage Loans EXHIBIT F-2 Mortgage Loans for which All or a Portion of a Related Mortgage File is not Delivered to the Trustee on or prior to the Closing Date EXHIBIT G Forms of Certification of Trustee EXHIBIT G-1 Form of Initial Certification of Custodian Exhibit F Trustee (Initial Mortgage Loans) EXHIBIT G-2 Form of Document Interim Certification and Exception Report of Custodian Exhibit G Trustee EXHIBIT G-3 Form of Residual Delay Delivery Certification EXHIBIT G-4 Form of Initial Certification of Trustee (Subsequent Mortgage Loans) EXHIBIT H Form of Final Certification of Trustee EXHIBIT I Transfer Affidavit Exhibit H for Class A-R Certificates EXHIBIT J-1 Form of Transferor Certificate Exhibit I for Class A-R Certificates EXHIBIT J-2 Form of Transferor Certificate for Private Certificates EXHIBIT K Form of Investment Letter (Non-Rule 144A) EXHIBIT L Form of Rule 144A Letter Exhibit J-1 EXHIBIT M Form of Back-up Request for Document Release EXHIBIT N Form of Request for File Release EXHIBIT O Copy of Depository Agreement EXHIBIT P Form of Subsequent Transfer Agreement EXHIBIT Q [Reserved] EXHIBIT R [Reserved] EXHIBIT S-1 [Reserved] EXHIBIT S-2 [Reserved] EXHIBIT T Officer's Certificate with respect to Prepayments EXHIBIT U Form of Swap Contract EXHIBIT V-1 Form of Swap Contract Assignment Agreement EXHIBIT V-2 Form of Swap Contract Administration Agreement EXHIBIT V-3 Form of Swap Guarantee EXHIBIT W Form of Monthly Statement EXHIBIT X-1 Form of Performance Certification (Master ServicerSubservicer) Exhibit J-2 EXHIBIT X-2 Form of Back-up Performance Certification (Securities AdministratorTrustee) Exhibit K EXHIBIT Y Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 EXHIBIT Z List of Item 1119 Parties EXHIBIT AA Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R S▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇-▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September 1, 2006 ▇ Certification (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Replacement Master Servicer"), ) SCHEDULE I Prepayment Charge Schedule and as securities administrator (in such capacity, the "Securities Administrator").Prepayment Charge Summary SCHEDULE II Collateral Schedule

Filing Obligations. 109 96 Section 13.02 12.02 Form 8-K Filings.................................................................................110 ..........................................................................................97 Section 13.03 12.03 Form 10-D Filings................................................................................111 .........................................................................................98 Section 13.04 12.04 Form 10-K Filings................................................................................112 ........................................................................................100 Section 13.05 12.05 Form 15 Filing...................................................................................114 ...........................................................................................102 Section 13.06 12.06 Sarbanes-Oxley Certification.....................................................................114 .............................................................................102 Section 13.07 12.07 Report on Assessment of Compliance and Attestation.................................................. Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES .......................................................102 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 J Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Servicing Agree▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇a▇▇▇ ▇▇▇cing Agreement, dated as s of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S R ▇i▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as ▇ Power of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company Attorney THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September August 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and as securities administrator (in such ▇▇ ▇uch capacity, the "Securities Administrator").

Filing Obligations. 109 116 Section 13.02 Form 10-D Filings...........................................116 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 ............................................117 Section 13.04 Form 10-K Filings................................................................................112 ...........................................118 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ................................119 Section 13.06 Form 15 Filing..............................................119 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ..........119 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES ......................120 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, R and Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (J Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Mortgage Loan Purchase Agreement, dated July 1, 2004 between various sellers Countrywide Home Loans, Inc. and Goldman Sachs Mortgage ▇▇▇▇▇ny, as amended by Amendment Reg AB Exhibit K Servicing Agreement, dated as of July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company, a▇ amended by Amendment Reg AB Exhibit L Master Mortgage Loan Purchase and Interim Servicing Agreement, dated March 24, 2004, between First National Bank of Nevada and Goldman Sachs Mortgage Company E▇▇▇▇▇▇ M Comprehensive Amended and Restated Servicing Agreement, dated as of September 1, 2005 by and among Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo ▇ JPMorgan Chase Bank, National Association Exhibit N Amended and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Restated Master Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T GreenPoint Mortgage Corporation Funding, Inc. and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENTE▇▇▇▇▇▇ O ▇▇rvicing Agreement, dated as of September November 1, 2006 (this "Agreement")2005, is hereby executed by between GreenPoint Mortgage Funding, Inc. and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ Goldman Sachs Mortgage ▇▇▇acity, the "Master Servicer"), and as securities administrator (in such capacity, the "Securities Administrator").▇▇ny

Filing Obligations. 109 114 Section 13.02 Form 10-D Filings...........................................................115 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 ............................................................116 Section 13.04 Form 10-K Filings................................................................................112 ...........................................................116 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ................................................▇▇▇ Section 13.06 Form 15 Filing..............................................................117 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ..........................117 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES ......................................119 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (J Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Mortgage Loan Purchase Agreement, dated as of about July 1, 2004 between various sellers Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company, as amended by Amend▇▇▇▇ ▇▇g ▇▇ Exhibit K Servicing Agreement, dated on or about July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company, as amended by Amend▇▇▇▇ ▇▇g ▇▇ Exhibit L Amendment Reg AB to the Master Mortgage Loan Purchase and Servicing Agreement, dated as of January 1, 2006, among Goldman Sachs Mortgage Company, Countrywide Home Lo▇▇▇, ▇▇c. and Countrywide Home Loans Servicing LP Exhibit M Amended and Restated Mortgage Loan Flow Purchase, Sale & Servicing Agreement, dated as of December 1, 2005, between Goldman Sachs Mortgage Company and PHH Mortgage Corporation (▇▇▇merly known as Cendant Mortgage Corporation) and Bishop's Gate Residential Mortgage Trust (formerly ▇▇▇▇▇ ▇▇ Cendant Residential Mortgage Trust) Exhibit N Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit O Servicing Agreement, ▇▇▇▇bit Q ▇ ▇▇ ▇▇ November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit P Second Amended and Restated Flow Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit R Q Second Amended and ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇d ▇▇▇▇▇r Mortgage Loan Purchase er Seller's Warranties and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS and Wells Fargo Bank, N.A. Exhibit ▇-▇ ▇▇▇▇ of Performance Certifi▇▇▇▇▇n (Master Servicer) Exhibit R-2 Form of Performance Certification (Securities Administrator) Exhibit S Form of Servicing Criteria to be addressed in assessment of compliance statement Exhibit T Form of Request for Release of Documents (U.S. Bank) Exhibit T-1 Form of Request for Release of Documents (Wells Fargo) ▇▇IS MASTER SERVICING AND TRUST AGREEMENT, dated as of September July 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian), U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE WELLS FARGO BANK, NATIONAL ASSOCIATION ("JPMorganWells Fargo"), as a custodian custo▇▇▇▇ (Deutsche Bank, JPMorgan Bank and U.S. BankWells Fargo, each a ▇ "Custodian▇ustodian" and together the "Custodians"), ) and WELLS FARGO ▇▇▇▇RGAN CHASE BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 110 Section 13.02 13.02. Form 10-D Filings..........................................................................111 Section 13.03. Form 8-K Filings.................................................................................110 ...........................................................................112 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 13.04. Form 10-K Filings..........................................................................................................................................................112 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 13.05. Sarbanes-Oxley Certification....................................................................................................................................113 Section 13.06. Form 15 Filing.............................................................................114 Section 13.07 13.07. Report on Assessment of Compliance and Attestation.................................................. .........................................114 Section 13.08 13.08. Use of Subservicers and Subcontractors...........................................................116 SCHEDULES .....................................................115 Schedule I Mortgage I.Mortgage Loan Schedule EXHIBITS Exhibit A EXHIB▇▇▇ ▇▇▇▇▇it A. Form of Class A, Class M and Class B Certificates Exhibit B B. Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Performance Certification (Master Servicer) Exhibit J-2 Form of Back-up Performance Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed addressed in Assessment assessment of Compliance Statement compliance statement Exhibit L Form of Request for Release of Documents (U.S. Bank) Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National AssociationDeutsche Bank) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust CompanyJPMorgan Chase Bank) Exhibit L-3 L-2 Form of Request for Release of Documents (JPMorgan Chase Wells Fargo Bank, National Association) Exhibit M Form 8-K Disclosure Information Master Mortgage Loan Purchase A▇▇▇▇▇ent, dated as of July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit N Additional Form 10-D Disclosure Exhibit Mo▇▇▇▇▇▇ Loan Sale and Servicing Agreement, among American Home Mortgage Corp., American Home Mortgage Servicing, Inc. and Goldman Sachs Mortgage Company, dated as of December 1, ▇0▇▇ ▇xhibit O Additional Form 10-K Disclosure Comprehensive Amended and Restated Servicing Agreement, dated as of September 1, 2005 by and among Goldman Sachs Mortgage Company and JPMorgan Chase ▇▇▇▇, ▇ational Association Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flow Servicing Agr▇▇▇▇bit Q Flow ▇▇, ▇▇▇▇▇ as of May 1, 2005, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit R Fl▇▇ ▇▇▇▇icing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R S Master Seller's Wa▇▇▇▇▇cing ▇▇s ▇▇▇ Servicing Agreement, between Goldman Sachs Mortgage Company and Wells Fargo Bank, N.A., dated as of June 30August 1, 20062004, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement▇ amended by Amendment No. 1, dated as of November 1April 26, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company 2005 THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September April 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION WELLS FARGO BANK, N.A. ("U.S. Wells Fargo"), as a custodian, DEUTSCHE B▇▇▇ ▇ATIONAL TRUST COMPAN▇ ("▇eutsche Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian custodian, (Wells Fargo, Deutsche Bank, JPMorgan and U.S. Bank, each a "CustodianCustod▇▇▇" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 159 Section 13.02 11.02. Form 10-D Filings...........................................159 Section 11.03. Form 8-K Filings.................................................................................110 ............................................160 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 11.04. Form 10-K Filings................................................................................112 ...........................................160 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 11.05. Sarbanes-Oxley Certification.....................................................................114 ................................161 Sec▇▇▇▇ ▇▇.▇▇. ▇▇rm 15 Filing..............................................162 Section 13.07 11.07. Report on Assessment of Compliance and Attestation.................................................. ..........162 Section 13.08 11.08. Use of Subservicers and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS ......................163 Section 11.09. Amendments..................................................164 ATTACHMENTS Exhibit A A-1 Form of Class A, Class M and Class B Certificates Initial Certification Exhibit A-2 Form of Interim Certification Exhibit A-3 Form of Final Certification Exhibit A-4 Form of Endorsement Exhibit B Form of Class P Certificates [Reserved] Exhibit C Form of Class R, Class RC and Class RX Certificates Lost Note Affidavit Exhibit D Custodial Agreement Exhibit E Custodial Account Letter Agreement Exhibit F Escrow Account Letter Agreement Exhibit G-1 Form of Class X Certificate Monthly Remittance Advice Exhibit E G-1A Form of Initial Monthly Remittance Advice Exhibit G-2 Standard Layout For Monthly Defaulted Loan Report Exhibit G-3 Form 332 Realized Loss Report Exhibit H-1 Form of Certification of to be Provided to the Master Servicer by the Servicer/Trustee/Custodian Exhibit F H-2 Form of Document Master Servicer Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Item 1119 Party Schedule Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K J Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 K Form of Request for Release of Documents (U.S. Bank National Association) [Class AF-5B] Policy [Exhibit L-2 L Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Subsequent Transfer Agreement] Exhibit M Form 8of Sarbanes-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form Oxley Certification (Replacement of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r ) Schedule A Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER Schedule This SALE AND SERVICING AND TRUST AGREEMENT, dated as of September 1_______, 2006 200_ (this the "Agreement" or the "Sale and Servicing Agreement"), is hereby executed by and among GS ______ MORTGAGE SECURITIES CORPINVESTMENT TRUST 200_-__, a Delaware statutory trust, as issuer (the "Issuer"), CWMBS, INC., a Delaware corporation corporation, as depositor (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ____________________________________, as indenture trustee (the "Deutsche BankIndenture Trustee"), ____________________, as trustee trust administrator (in such capacity, the "TrusteeTrust Administrator") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and _________________________, as securities administrator servicer (in such capacity, the "Securities AdministratorServicer"), and ____________________________, as seller (the "Seller").

Filing Obligations. 109 128 Section 13.02 Form 8-K Filings.................................................................................110 ..............................................................................129 Section 13.03 Form 10-D Filings................................................................................111 .............................................................................130 Section 13.04 Form 10-K Filings................................................................................112 .............................................................................131 Section 13.05 Form 15 Filing...................................................................................114 ................................................................................133 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ..................................................................134 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ............................................134 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 ........................................................135 -iv- TABLE OF CONTENTS ----------------- (Continued) SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National AssociationTrust Company) Exhibit L-2 L-1 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 L-2 Form of Request for Release of Documents (JPMorgan Chase BankThe Bank of New York Trust Company, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure -v- TABLE OF CONTENTS ----------------- (Continued) Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flow Servicing ▇▇▇▇bit Q Flow Servicing Agreement▇▇e▇▇, dated ▇ated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing vicing Agreement, dated as of June 30July 1, 20062004, between Wells Fargo Bank, National Association Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit S ▇▇▇t▇▇ ▇▇r rtgage Loan Purchase Agreement, dated as of July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit T ▇▇▇ndment Reg AB, dated as of January 1, 2006, between Goldman Sachs Mortgage Company and Countrywide Home Loans, Inc. Exhibit U Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit V Servicing Agre▇▇▇▇▇, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit W ▇▇▇o▇▇ ▇▇ended and Restated Master Mortgage Loan Purchase Agreement, dated as of March 1, 2006, as amended by the Amendment No. 1, dated as of June 1, 2006, between IndyMac Bank, F.S.B. and Goldman Sachs Mortgage Company Exhibit X Amended and Re▇▇▇▇▇▇ Servicing Agreement, dated as of November 1, 2005, between M&T the IndyMac Bank, F.S.B. and Goldman Sachs Mortgage Corporation Company Exhibit Y Second Amended ▇▇▇ ▇▇s▇▇▇▇▇ Master Mortgage Loan Purchase and Interim Servicing Agreement, dated as of May 1, 2006, by and between First National Bank of Nevada and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September February 1, 2006 2007 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANKTHE BANK OF NEW YORK TRUST COMPANY, NATIONAL ASSOCIATION ("JPMorganBNY"), as a custodian (Deutsche Bank, JPMorgan BNY and U.S. Bank, each as a "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATIONASSOCIATION ("Wells Fargo"), as master servicer (in sucmaste▇ ▇▇▇acityvicer (in such capacity, the "Master Servicer▇▇▇▇icer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 106 Section 13.02 Form 10-D Filings................................................................................107 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 108 Section 13.04 Form 10-K Filings................................................................................112 109 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 110 Section 13.06 Form 15 Filing...................................................................................110 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ...............................................110 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES 112 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Performance Certification (Master Servicer) Exhibit J-2 Form of Back-up Performance Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit N ▇▇▇▇ ▇e▇▇▇▇bit Q ▇ng Agreement, dated as of May 1, 2005, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit O Flow Servicing AgreementAg▇▇▇▇▇▇▇, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association P Amended and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Restated Mortgage Loan Purchase and Flow Purchase, Sale & Servicing Agreement, dated as of November December 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company and PHH Mortgage Corporation (formerly known as Cendant Mortgage Corporation) and Bishop's Gate Residential Mortgage Trust (formerl▇ ▇▇▇▇▇ as Cendant Residential Mortgage Trust) THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September April 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATIONN.A., as master servicer (in suc▇ such capacity, the "▇▇▇acity, the "Master ▇▇r Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 116 Section 13.02 Form 10-D Filings...........................................117 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 ............................................118 Section 13.04 Form 10-K Filings................................................................................112 ...........................................118 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ................................119 Se▇▇▇▇▇ ▇▇.▇▇ ▇orm 15 Filing..............................................120 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ..........120 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES ......................121 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Performance Certification (Master Servicer) Exhibit J-2 Form of Back-up Performance Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed addressed in Assessment assessment of Compliance Statement compliance statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Mortgage Loan Purchase Agreement, dated as of July 1, 2004, between various sellers Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit N Servicing ▇▇▇▇▇▇ent, dated as of July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit O Amendment ▇▇▇ ▇▇ t▇ ▇▇▇ Master Mortgage Loan Purchase and Servicing Agreement, dated as of January 1, 2006, among Goldman Sachs Mortgage Company, Countrywide Home Loan▇, ▇▇▇. and Countrywide Home Loans Servicing LP Exhibit P Master Mortgage Loan Purchase and Interim Servicing Agreement, dated March 24, 2004, between First National Bank of Nevada and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Comprehensive Amended and Restated Servicing Agreement, dated as of September 1, 2005 by and among Goldman Sachs Mortgage Company and JPMorgan Chase Bank, ▇▇▇▇▇nal Association Exhibit R Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit S Servicing Agreement, d▇▇▇▇ ▇▇ ▇▇ ▇▇vember 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit T Second Ame▇▇▇▇ ▇▇d Restated Flow Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit U Form of Master Loan Pu▇▇▇▇▇▇ A▇▇▇▇▇ent, between various sellers and Goldman Sachs Mortgage Company Exhibit V Flow Servicing AgreementAgreeme▇▇, ▇▇▇ed as of May 1, 2005, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit W Flow Servi▇▇▇▇ ▇▇r▇▇▇▇▇t, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R X Amended and Restated M▇▇▇▇▇cing ▇▇ Loan Flow Purchase, Sale & Servicing Agreement, dated as of June 30December 1, 20062005, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S and PHH Mortgage Corpor▇▇▇▇▇ (formerly known as Cendant Mortgage Corporation) and Bishop's Gate Residential Mortgage Trust (formerly kno▇r ▇ ▇▇ ▇▇ndant Residential Mortgage Loan Purchase Trust) Exhibit Y Amended and Restated Flow Seller's Warranties and Servicing Agreement, dated as of November December 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company and SunTrust Mortgage, ▇▇▇. THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September March 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 117 Section 13.02 Form 10-D Filings................................................................................117 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 118 Section 13.04 Form 10-K Filings................................................................................112 119 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 121 Section 13.06 Form 15 Filing...................................................................................121 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ...............................................122 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES 123 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National AssociationTrust Company) Exhibit L-2 L-1 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 L-2 Form of Request for Release of Documents (JPMorgan Chase Bank, National Trust Company) Exhibit L-3 Form of Request for Release of Documents (Wells Fargo Bank, National Association) Exhibit M Form 8-K Disclosure Di▇▇▇▇▇ure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flo▇ ▇▇▇▇bit Q Flow Servicing icing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R Servicing Agreement, ▇▇▇▇▇ a▇ ▇▇ July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit S Master Mortgage Loan ▇▇▇▇▇cing ▇se Agreement, dated as of June 30July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit T Amendment Reg AB, da▇▇▇ ▇▇ o▇ ▇▇▇uary 1, 2006, between Goldman Sachs Mortgage Company and Countrywide Home ▇▇▇▇▇, Inc. Exhibit U Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit V Servicing Agreement, ▇▇▇▇▇ a▇ ▇▇ November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit W Second Amended and ▇▇▇▇▇▇▇d Flow Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit X Second Amended and R▇▇▇▇▇▇▇ ▇▇▇▇▇r Seller's Warranties and Servicing Agreement, dated as of November 1, 2005, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S Y Amend▇▇ ▇▇▇ R▇▇▇▇▇r Mortgage Loan Purchase ed Flow Seller's Warranties and Servicing Agreement, dated as of November December 1, 2005, between M&T Mortgage Corporation SunTrust Mortgage, Inc. and Goldman Sachs Mortgage Company Exhibit Z Seller's Purchase, W▇▇▇▇▇▇▇es and Servicing Agreement, dated as of April 1, 2005, between Goldman Sachs Mortgage Company and Wachovia Mortgage Corporation THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September August 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE LASALLE BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche BankLaSalle"), as trustee (in such capacity, the "Trustee") and as a custodian), U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian custodian, WELLS FARGO BANK, NATIONAL ASSOCIATION ("Wells Fargo"), as a custod▇▇▇ (Deutsche Bank, JPMorgan and JPMorgan, U.S. BankBank a▇▇ ▇▇lls Fargo, each as a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION) a▇▇ ▇▇lls Fargo, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master ServicerServ▇▇▇▇"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 115 Section 13.02 Form 10-D Filings.......................................................................116 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 ........................................................................117 Section 13.04 Form 10-K Filings................................................................................112 .......................................................................117 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ............................................................119 Section 13.06 Form 15 Filing..........................................................................119 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ......................................119 Section 13.08 Use of Subservicers Subservicer and Subcontractors...........................................................116 SCHEDULES ...................................................121 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, R and Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 J [RESERVED] Exhibit K [RESERVED] Exhibit L Amended and Restated Flow Mortgage Loan Purchase and Warranties Agreement, dated as of June 1, 2005, between Ameriquest Mortgage Company and Goldman Sachs Mortgage Company Exhibit M Flow Servicing Righ▇▇ ▇▇▇▇h▇▇▇ ▇nd Servicing Agreement, dated as of December 19, 2005, between Saxon Mortgage Services, Inc. and Goldman Sachs Mortgage Company Exhibit N Form of Back-up Certification Performance ▇▇▇▇▇▇i▇▇▇▇▇n (Master Servicer) Exhibit J-2 O Form of Back-up Performance Certification (Securities Administrator) Exhibit K P Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September January 1, 2006 2005 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank")COMPANY, as trustee (in such capacity, the "Trustee") ), and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bankin such capacity, JPMorgan and U.S. Bank, each a the "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATIONN.A., as master servicer (in suc▇ such capacity, the "▇▇▇acity, the "Master ▇er Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 159 Section 13.02 11.02. Form 10-D Filings...........................................159 Section 11.03. Form 8-K Filings.................................................................................110 ............................................160 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 11.04. Form 10-K Filings................................................................................112 ...........................................160 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 11.05. Sarbanes-Oxley Certification.....................................................................114 ................................161 Sect▇▇▇ ▇▇.▇▇. ▇▇▇m 15 Filing..............................................162 Section 13.07 11.07. Report on Assessment of Compliance and Attestation.................................................. ..........162 Section 13.08 11.08. Use of Subservicers and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS ......................163 Section 11.09. Amendments..................................................164 ATTACHMENTS Exhibit A A-1 Form of Class A, Class M and Class B Certificates Initial Certification Exhibit A-2 Form of Interim Certification Exhibit A-3 Form of Final Certification Exhibit A-4 Form of Endorsement Exhibit B Form of Class P Certificates [Reserved] Exhibit C Form of Class R, Class RC and Class RX Certificates Lost Note Affidavit Exhibit D Custodial Agreement Exhibit E Custodial Account Letter Agreement Exhibit F Escrow Account Letter Agreement Exhibit G-1 Form of Class X Certificate Monthly Remittance Advice Exhibit E G-1A Form of Initial Monthly Remittance Advice Exhibit G-2 Standard Layout For Monthly Defaulted Loan Report Exhibit G-3 Form 332 Realized Loss Report Exhibit H-1 Form of Certification of to be Provided to the Master Servicer by the Servicer/Trustee/Custodian Exhibit F H-2 Form of Document Master Servicer Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Item 1119 Party Schedule Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K J Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 K Form of Request for Release of Documents (U.S. Bank National Association) [Class AF-5B] Policy [Exhibit L-2 L Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Subsequent Transfer Agreement] Exhibit M Form 8of Sarbanes-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form Oxley Certification (Replacement of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r ) Schedule A..Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER Schedule This SALE AND SERVICING AND TRUST AGREEMENT, dated as of September 1_______, 2006 200_ (this the "Agreement" or the "Sale and Servicing Agreement"), is hereby executed by and among GS ______ MORTGAGE SECURITIES CORPINVESTMENT TRUST 200_-__, a Delaware statutory trust, as issuer (the "Issuer"), CWALT, INC., a Delaware corporation corporation, as depositor (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ____________________________________, as indenture trustee (the "Deutsche BankIndenture Trustee"), ____________________, as trustee trust administrator (in such capacity, the "TrusteeTrust Administrator") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and _________________________, as securities administrator servicer (in such capacity, the "Securities AdministratorServicer"), and ____________________________, as seller (the "Seller").

Filing Obligations. 109 116 Section 13.02 Form 10-D Filings................................................................................117 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 118 Section 13.04 Form 10-K Filings................................................................................112 119 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 121 Section 13.06 Form 15 Filing...................................................................................121 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ...............................................122 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES 123 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National AssociationTrust Company) Exhibit L-2 L-1 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 L-2 Form of Request for Release of Documents (JPMorgan Chase Bank, National AssociationTrust Company) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit ibit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R Amended and Restated ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r ▇ Mortgage Loan Purchase and Interim Servicing Agreement, dated as of November 1, 2005, between M&T First National Bank of Nevada and Goldman Sachs Mortgage Corporation Company Exhibit S Servi▇▇▇▇ ▇▇r▇▇▇▇▇t, dated as of July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit T Maste▇ ▇▇▇▇▇age Loan Purchase Agreement, dated as of July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit U Amend▇▇▇▇ ▇▇g ▇▇, dated as of January 1, 2006, between Goldman Sachs Mortgage Company and Countrywide Home ▇▇▇▇▇, Inc. Exhibit V Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit W Servicing Agreement, ▇▇▇▇▇ a▇ ▇▇ November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit X Secon▇ ▇▇▇▇▇ed and Restated Flow Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit Y Mortgage Loan Sale a▇▇ ▇▇▇▇i▇▇▇▇ Agreement, dated December 1, 2005, by and among American Home Mortgage Corp., American Home Mortgage Servicing, Inc. and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September June 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each as a "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATIONASSOCIATION ("Wells Fargo"), as master servicer (in suc▇ s▇▇▇acity▇▇er (in such capacity, the "Master ServicerSe▇▇▇▇▇r"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 128 Section 13.02 Form 8-K Filings.................................................................................110 ..............................................................................130 Section 13.03 Form 10-D Filings................................................................................111 .............................................................................131 Section 13.04 Form 10-K Filings................................................................................112 .............................................................................132 Section 13.05 Form 15 Filing...................................................................................114 ................................................................................134 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ..................................................................134 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ............................................135 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES ........................................................136 -iv- TABLE OF CONTENTS ----------------- (Continued) Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. The Bank of New York Trust Company, National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase U.S. Bank National Association) Exhibit L-4 Form of Request for Release of Documents (Wells Fargo Bank, National Association) Exhibit M Form 8-K Disclosure 8-▇ ▇▇▇closure Information Exhibit N Additional Form 10-D Disclosure -v- TABLE OF CONTENTS ----------------- (Continued) Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flow Servicing A▇▇▇▇bit Q Flow Servicing Agreement▇▇▇t, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit S Master Mortgage ▇▇▇▇ ▇▇r▇▇▇▇▇ Agreement, dated as of July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit T Amendment Reg AB, ▇▇▇▇▇ as of January 1, 2006, between Goldman Sachs Mortgage Company and Countrywide H▇▇▇ ▇▇▇n▇, ▇▇c. Exhibit U Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit V Amended and Rest▇▇▇▇ ▇▇rvicing Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit W Second Amended a▇▇ ▇▇▇▇a▇▇▇ ▇low Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit X Seller's Purchas▇, ▇▇▇▇anties and Servicing Agreement, dated as of April 1, 2006, between Goldman Sachs Mortgage Company and Wachovia Mortgage Corporation ▇▇▇▇▇▇▇ ▇ Second Amended and Restated Master Seller's Warranties and Servicing Agreement, dated as of November 1, 2005, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S Z ▇▇▇▇ o▇ ▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as ▇erest Rate Swap Agreement (LIBOR) Exhibit AA Form of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company Interest Rate Swap Agreement (Federal Funds Rate) THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September May 1, 2006 2007 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and ), THE BANK OF NEW YORK TRUST COMPANY, NATIONAL ASSOCIATION ("BNY"), as a custodian, U.S. DEUTSCHE BANK NATIONAL TRUST COMPANY, as a custodian, U.S.BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANKWELLS ▇▇▇▇▇ ▇ANK, NATIONAL ASSOCIATION ("JPMorganWells Fargo"), as a custodian custo▇▇▇▇ (BNY, Deutsche Bank, JPMorgan U.S. Bank and U.S. BankW▇▇▇▇ Fargo, each as a "Custodian" and together the "Custodians"), and WELLS ) ▇▇▇ ▇ELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 85 Section 13.02 11.02 Form 8-K Filings.................................................................................110 ..................................................................................86 Section 13.03 11.03 Form 10-D Filings................................................................................111 .................................................................................87 Section 13.04 11.04 Form 10-K Filings................................................................................112 .................................................................................89 Section 13.05 11.05 Form 15 Filing...................................................................................114 ....................................................................................90 Section 13.06 11.06 Sarbanes-Oxley Certification.....................................................................114 ......................................................................90 Section 13.07 11.07 Report on Assessment of Compliance and Attestation.................................................. Section 13.08 Use of Subservicers and Subcontractors...........................................................116 ................................................91 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 J Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities AdministratorTrustee) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Flow Mortgage Loan Purchase and Warranties Agreement, dated as of March 1, 2006, between various sellers and Goldman Sachs Mortgage Company Company, as purchaser and ▇▇▇ ▇▇bit ntury Mortgage Corporation, as seller Exhibit Q Flow Interim Servicing Agreement, dated as of January March 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R Company, as purchaser and ▇▇▇ ▇▇n▇▇▇▇▇cing ▇ Mortgage Corporation, as interim servicer Exhibit R Servicing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Association, as servi▇▇▇ ▇nd Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing AgreementCompany, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company owner THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September October 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") ), and as a custodian, U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and as securities administrator (in such capacity, the "Securities AdministratorCustodian").

Filing Obligations. 109 114 Section 13.02 Form 10-D Filings................................................................................115 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 116 Section 13.04 Form 10-K Filings................................................................................112 116 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 117 Section 13.06 Form 15 Filing...................................................................................117 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ...............................................118 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES 119 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) J Mortgage Loan Sale and Servicing Agreement, dated December 1, 2005, by and among American Home Mortgage Corp., American Home Mortgage Servicing, Inc. and Goldman Sachs Mortgage Company Exhibit K Form ▇▇▇▇ded and Restated Flow Mortgage Loan Purchase and Warranties Agreement, dated as of Servicing Criteria to be Addressed in Assessment June 1, 2005, between Goldman Sachs Mortgage Company and Ameriquest Mortgage ▇▇▇▇▇ny Exhibit L Master Mortgage Loan Purchase Agreement, dated as of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust about July 1, 2004 between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) as amended by Amendment Reg AB Exhibit M Form 8-K Disclosure Information Servicing Agreement, dated on or about July 1, 2004, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company, as amended by A▇▇▇▇▇▇▇t ▇▇▇ AB Exhibit N Additional Form 10-D Disclosure Exhibit Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company ▇▇hibit O Additional Form 10-K Disclosure Servicing Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit P Form ▇▇▇▇nd Amended and Restated Flow Seller's Warranties and Servicing Agreement, dated as of Master January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit Q ▇▇▇▇ ▇▇ ▇▇ster Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit R Flow Servicing ▇▇▇▇bit Q Flow ▇▇▇nt, dated as of May 1, 2005, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇ ▇▇▇▇▇cing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R T ▇▇▇▇ Mortgage Loan Purchase and Warranties Agreement, dated as of December 1, 2005, between Goldman Sachs Mortgage Company and Novelle Fina▇▇▇▇▇ ▇e▇▇▇▇▇cing Agreements, dated as of June 30, 2006, between Wells Fargo Bank, National Association Inc. Exhibit U Second Amended and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase Restated Master Seller's Warranties and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company and Wells Fargo Bank, N.A. Exhibi▇ ▇-▇ Form of Performance Cer▇▇▇▇▇ation (Master Servicer) Exhibit V-2 Form of Performance Certification (Securities Administrator) Exhibit W Form of Servicing Criteria to be addressed in assessment of compliance statement Exhibit X Form of Request for Release of Documents (U.S. Bank) Exhibit X-1 Form of Request for Release of Documents (Deutsche Bank) Exhibit X-2 Form of Request for Release of Documents (JPMorgan) THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September May 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), ) and WELLS FARGO JPMORGAN CHASE BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 159 Section 13.02 11.02. Form 10-D Filings.........................................159 Section 11.03. Form 8-K Filings.................................................................................110 ..........................................160 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 11.04. Form 10-K Filings................................................................................112 .........................................160 Section 13.05 11.05. ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Certification..............................161 Section 11.06. Form 15 Filing...................................................................................114 ............................................162 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 11.07. Report on Assessment of Compliance and Attestation.................................................. ...............................................162 Section 13.08 11.08. Use of Subservicers and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS ....................163 Section 11.09. Amendments................................................164 ATTACHMENTS Exhibit A A-1 Form of Class A, Class M and Class B Certificates Initial Certification Exhibit A-2 Form of Interim Certification Exhibit A-3 Form of Final Certification Exhibit A-4 Form of Endorsement Exhibit B Form of Class P Certificates [Reserved] Exhibit C Form of Class R, Class RC and Class RX Certificates Lost Note Affidavit Exhibit D Custodial Agreement Exhibit E Custodial Account Letter Agreement Exhibit F Escrow Account Letter Agreement Exhibit G-1 Form of Class X Certificate Monthly Remittance Advice Exhibit E G-1A Form of Initial Monthly Remittance Advice Exhibit G-2 Standard Layout For Monthly Defaulted Loan Report Exhibit G-3 Form 332 Realized Loss Report Exhibit H-1 Form of Certification of to be Provided to the Master Servicer by the Servicer/Trustee/Custodian Exhibit F H-2 Form of Document Master Servicer Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Item 1119 Party Schedule Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K J Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 K Form of Request for Release of Documents (U.S. Bank National Association) [Class AF-5B] Policy [Exhibit L-2 L Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Subsequent Transfer Agreement] Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇-▇▇▇▇▇r ▇ Certification (Replacement of Master Servicer) Schedule A Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER Schedule This SALE AND SERVICING AND TRUST AGREEMENT, dated as of September 1_______, 2006 200_ (this the "Agreement" or the "Sale and Servicing Agreement"), is hereby executed by and among GS ______ MORTGAGE SECURITIES CORPINVESTMENT TRUST 200_-__, a Delaware statutory trust, as issuer (the "Issuer"), CWHEQ, INC., a Delaware corporation corporation, as depositor (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ____________________________________, as indenture trustee (the "Deutsche BankIndenture Trustee"), ____________________, as trustee trust administrator (in such capacity, the "TrusteeTrust Administrator") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and _________________________, as securities administrator servicer (in such capacity, the "Securities AdministratorServicer"), and ____________________________, as seller (the "Seller").

Filing Obligations. 109 112 Section 13.02 Form 8-K Filings.................................................................................110 .............................................114 Section 13.03 Form 10-D Filings................................................................................111 ............................................115 Section 13.04 Form 10-K Filings................................................................................112 ............................................116 Section 13.05 Form 15 Filing...................................................................................114 ...............................................118 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 Report .................................118 Se▇▇▇▇▇ ▇▇.▇▇ ▇eport on Assessment of Compliance and Attestation.................................................. ...........118 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES .......................120 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit L-4 Form of Request for Release of Documents (Wells Fargo Bank, National Association) Exhibit M Form ▇orm 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit Q Flow Servicing Agree▇▇▇▇bit Q , ▇ated as of May 1, 2005, between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit R Flow Servicing Agreement▇▇▇▇▇▇▇n▇ ▇▇▇eement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R S Mortgage Loan Sale a▇▇ ▇▇▇▇icing Agreement, dated December 1, 2005, by and among American Home Mortgage Corp., American Home Mortgage Servicing, Inc. and Goldman Sachs Mortgage Company Exhibit T Amended and Restated ▇▇▇▇ ▇o▇▇▇▇▇cing e Loan Purchase and Warranties Agreement, dated as of June 301, 20062005, between Wells Fargo BankGoldman Sachs Mortgage Company and Ameriquest Mortga▇▇ ▇▇▇▇any Exhibit U Master Mortgage Loan Purchase and Interim Servicing Agreement, dated as of March 24, 2004, between First National Association Bank of Nevada and Goldman Sachs Mortgage Company Exhibit S V Flow Mortgage Loan P▇▇▇▇▇r ▇▇ ▇▇▇ ▇arranties Agreement, dated as of November 1, 2003, between Goldman Sachs Mortgage Company and Fremont Investmen▇ & ▇▇▇n Exhibit W Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit X Servicing Agreement, ▇▇▇▇▇ a▇ ▇▇ November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit Y Flow ▇▇▇▇▇▇▇e Loan Purchase and Warranties Agreement, dated as of December 1, 2005, between Goldman Sachs Mortgage Company and Novelle Financial ▇▇▇▇▇▇e▇, ▇▇c. Exhibit Z Second Amended and Restated Master Seller's Warranties and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company and Wells Fargo Bank, National Association THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September June 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians")custodian, and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ such ▇▇▇acity▇city, the "Master Servicer"), and as securities administrator (in such capacity, the "Securities Administrator") and as a custodian (Deutsche Bank, JPMorgan, U.S. Bank and Wells Fargo, each a "Custodian" and together the "Custodians").

Filing Obligations. 109 Section 13.02 Form 8-K Filings.................................................................................110 111 Section 13.03 Form 10-D Filings................................................................................111 112 Section 13.04 Form 10-K Filings................................................................................112 113 Section 13.05 Form 15 Filing...................................................................................114 115 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 115 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ...............................................116 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES 117 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase BankThe Bank of New York Trust Company, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit hibit Q Flow Servicing Agreement, dated as of January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association ded and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Restated Master Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T GreenPoint Mortgage Corporation Funding, Inc. and Goldman Sachs Mortgage Company Exhibit S Servicing Agree▇▇▇▇, ▇a▇▇▇ ▇s of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit T ▇▇▇▇er Mortgage Loan and Servicing Agreement, dated as of December 1, 2006, between HSBC Mortgage Corporation (USA) and Goldman Sachs Mortgage Company Exhibit U Amended and Res▇▇▇▇▇ ▇l▇▇ ▇▇ller's Warranties and Servicing Agreement, dated as of December 1, 2005, between SunTrust Mortgage, Inc. and Goldman Sachs Mortgage Company Exhibit V Amendment No. 1 ▇▇ ▇▇▇ Amended and Restated Flow Seller's Warranties and Servicing Agreement, dated as of July 1, 2006, between SunTrust Mortgage, Inc. and Goldman Sachs Mortgage Company Exhibit W ▇▇▇▇d▇▇ ▇▇d Restated Flow Mortgage Loan Purchase and Warranties Agreement, dated as of June 1, 2005, between Goldman Sachs Mortgage Company and Ameriquest Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September February 1, 2006 2007 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANKTHE BANK OF NEW YORK TRUST COMPANY, NATIONAL ASSOCIATION ("JPMorganBNY"), as a custodian (Deutsche Bank, JPMorgan BNY, and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATIONASSOCIATION ("Wells Fargo"), as master servicer (in suc▇ ▇▇▇acity▇icer (in such capacity, the "Master Servicer▇▇▇▇▇cer"), and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 112 Section 13.02 Form 10-D Filings.......................................................................113 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 ........................................................................114 Section 13.04 Form 10-K Filings................................................................................112 .......................................................................114 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ............................................................115 Section 13.06 Form 15 Filing..........................................................................115 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ......................................116 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 ..................................................117 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC R-1 and Class RX R-2 Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) J [RESERVED] Exhibit K Form [RESERVED] Exhibit L Amended and Restated Mortgage Loan Flow Purchase, Sale & Servicing Agreement, dated as of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents December 1, 2005, between Goldman Sachs Mortgage Company and PHH Mortgage Corporation (U.S. Bank National Associationformerly known as Cendant Mortgage Corporation) Exhibit L-2 Form of Request for Release of Documents and Bishop's Gate Residential Mortgage Trust (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Associationformerly known as Cendant Residential Mortgage Trust) Exhibit M Form 8-K Disclosure Information Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit N Additional Form 10-D Disclosure Servicing Agre▇▇▇▇▇, d▇▇▇▇ as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit O Additional Form 10-K Disclosure ▇▇▇n▇▇▇ ▇nd Restated Flow Seller's Warranties and Servicing Agreement, dated as of December 1, 2005, between Goldman Sachs Mortgage Company and SunTrust Mo▇▇▇▇▇▇, Inc. Exhibit P Form of Amended and Restated Master Mortgage Loan Purchase Agreement, dated on or about January 1, 2006 between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit Q Servicing Agreement, dated on or about January 1, 2006 between Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit R ▇▇▇m ▇▇ ▇aster Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company Exhibit S Flow Servicing ▇▇▇▇bit Q Flow Servicing Agreement▇▇e▇▇, dated ▇ated as of January May 1, 20062005, between Avelo Mortgage, L.L.C. Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit R T-1 ▇▇▇m ▇▇ ▇cing Agreement, dated as erformance Certification (Master Servicer) Exhibit T-2 Form of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Performance Certification (Securities Administrator) Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and U Form of Servicing Agreement, dated as Criteria to be addressed in assessment of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company compliance statement THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September January 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ("Deutsche Bank")ASSOCIATION, as trustee (in such capacity, the "Trustee") and as a custodian), U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan Bank and U.S. BankJPMorgan, each a "Custodian" and together the "Custodians"), ) and WELLS FARGO JPMORGAN CHASE BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acitysuch capacity, the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator").

Filing Obligations. 109 122 Section 13.02 12.02 Form 10-D Reporting...........................................123 Section 12.03 Form 8-K Filings.................................................................................110 Reporting............................................124 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 12.04 Form 10-K Filings................................................................................112 Reporting...........................................125 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 12.05 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 Report ..................................126 Sec▇▇▇▇ ▇▇.▇▇ ▇▇ports on Assessment of Compliance and Attestation.................................................. ...........127 Section 13.08 12.07 Use of Subservicers Servicers and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS ...........................128 Section 12.08 Indemnification by the Master Servicer and the Securities Administrator..............................129 ATTACHMENTS Exhibit A Form Forms of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Residual Certificate Transfer Affidavit (Transferee) Exhibit C Form of Class R, Class RC and Class RX Certificates Residual Certificate Transfer Affidavit (Transferor) Exhibit D Form of Class X Certificate [Reserved] Exhibit E Form List of Initial Certification of Custodian Purchase and Servicing Agreements Exhibit F Form List of Document Certification and Exception Report of Custodian Custodial Agreements Exhibit G Form Assignment and Notice of Residual Transfer Affidavit with Respect to Additional Collateral Mortgage Loans Exhibit H Form of Transferor Rule 144A Transfer Certificate Exhibit I Form of Rule 144A Purchaser's Letter for Institutional Accredited Investors Exhibit J-1 J Form of Back-up Certification (Master Servicer) ERISA Transfer Affidavit Exhibit J-2 K Form of Back-up Letter of Representations with the Depository Trust Company Exhibit L Form of Custodian Certification (Securities Administrator) Exhibit K M Assignment and Notice of Transfer with respect to each Additional Collateral Mortgage Loan Exhibit N List of Item 1119 Parties Exhibit O Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Performance Certification (Servicer) Schedule A Mortgage Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing AgreementSchedule Schedule B Principal Balances Schedule This POOLING AND SERVICING AGREEMENT, dated as of January 1___________, 2006200_ (the "Agreement"), between Avelo Mortgageby and among MORGAN STANLEY CAPITAL I INC., L.L.C. and Goldman Sachs Mortgage Company Exhibit R a Delaware corporation, as depositor (▇▇▇ "▇e▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP.[LASALLE BANK NATIONAL ASSOCIATION], a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank")national banking association, as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and [WELLS FARGO BANK, NATIONAL ASSOCIATION], in its dual capacities as master servicer (in suc▇ ma▇▇▇acity, ▇ servicer (the "Master Servicer"), ) and as securities administrator (in such capacity, the "Securities Administrator"), and acknowledged by MORGAN STANLEY MORTGAGE CAPITAL INC., a New York corporation, as sell▇▇ (▇▇e "▇▇▇▇▇r"), for purposes of Section 2.05.

Filing Obligations. 109 121 Section 13.02 12.02 Form 10-D Reporting.........................................................122 Section 12.03 Form 8-K Filings.................................................................................110 Reporting..........................................................123 Section 13.03 Form 10-D Filings................................................................................111 Section 13.04 12.04 Form 10-K Filings................................................................................112 Reporting.........................................................125 Section 13.05 Form 15 Filing...................................................................................114 Section 13.06 12.05 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 Report ................................................▇▇▇ ▇▇ction 12.06 Reports on Assessment of Compliance and Attestation.................................................. .........................127 Section 13.08 12.07 Use of Subservicers Subcontractors.......................................................128 Section 12.08 Indemnification by the Master Servicer and Subcontractors...........................................................116 SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS the Securities Administrator...............................................................129 Section 12.09 Indemnification by the Custodian............................................129 ATTACHMENTS Exhibit A Form Forms of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Residual Certificate Transfer Affidavit (Transferee) Exhibit C Form of Class R, Class RC and Class RX Certificates Residual Certificate Transfer Affidavit (Transferor) Exhibit D Form of Class X Certificate Corridor Contract Exhibit E Form List of Initial Certification of Custodian Purchase and Servicing Agreements Exhibit F Form List of Document Certification and Exception Report of Custodian Custodial Agreements Exhibit G Form Assignment and Notice of Residual Transfer Affidavit with respect to each Additional Collateral Mortgage Loan Exhibit H Form of Transferor Rule 144A Transfer Certificate Exhibit I Form of Rule 144A Purchaser's Letter for Institutional Accredited Investors Exhibit J-1 J Form of Back-up Certification (Master Servicer) ERISA Transfer Affidavit Exhibit J-2 K Form of Back-up Letter of Representations with the Depository Trust Company Exhibit L-1 Form of Initial Custodian Certification (Securities Administrator) Exhibit K L-2 Form of Final Custodian Certification Exhibit M Assignment and Notice of Transfer with respect to each Additional Collateral Mortgage Loan Exhibit N Additional Disclosure Required Under Regulation AB Exhibit O Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 P Additional Disclosure Notification Exhibit Q Glossary of Terms for Standard & Poor's LEVELS(R) Version 5.7 File Format Exhibit R Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Lost Note Affidavit Schedule A Mortgage Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow Servicing AgreementSchedule Schedule B Principal Balances Schedule This POOLING AND SERVICING AGREEMENT, dated as of January March 1, 20062006 (the "Agreement"), between Avelo Mortgageby and among MORGAN STANLEY CAPITAL I INC., L.L.C. and Goldman Sachs Mortgage Company Exhibit R a Delaware corporation, as depositor (▇▇▇ "D▇▇▇▇▇cing Agreement, dated as of June 30, 2006, between Wells Fargo Bank, National Association and Goldman Sachs Mortgage Company Exhibit S ▇▇▇▇▇r Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T Mortgage Corporation and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September 1, 2006 (this "Agreementr"), is hereby executed by and among GS MORTGAGE SECURITIES CORP.LASALLE BANK NATIONAL ASSOCIATION, a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank")national banking association, as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), and as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in sucits separate capacities a▇ ▇▇▇acity, ter servicer (the "Master Servicer"), and as securities administrator (in such capacity, the "Securities Administrator") and, in its capacity as Securities Administrator, as auction administrator (the "Auction Administrator") and acknowledged by MORGAN STANLEY MORTGAGE CAPITAL INC., a New York corporation, as sel▇▇▇ (▇h▇ "▇▇▇▇er"), for purposes of Section 2.05.

Filing Obligations. 109 116 Section 13.02 Form 10-D Filings...........................................116 Section 13.03 Form 8-K Filings.................................................................................110 Section 13.03 Form 10-D Filings................................................................................111 ............................................117 Section 13.04 Form 10-K Filings................................................................................112 ...........................................118 Section 13.05 ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Certification................................119 Section 13.06 Form 15 Filing...................................................................................114 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 ..............................................119 Section 13.07 Report on Assessment of Compliance and Attestation.................................................. ..........119 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 SCHEDULES ......................120 Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, R and Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Trustee Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (J Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 Form of Request for Release of Documents (U.S. Bank National Association) Exhibit L-2 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 Form of Request for Release of Documents (JPMorgan Chase Bank, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure Exhibit P Form of Master Mortgage Loan Purchase Agreement, dated July 1, 2004 between various sellers Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company ▇▇▇▇bit Q Flow ▇▇▇ Sachs Mortgage Company, as amended by Amendment Reg AB Exhibit K Servicing Agreement, dated as of January July 1, 20062004, between Avelo Mortgage, L.L.C. Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing ▇▇ ▇▇▇▇▇ Mortgage Company, as amended by Amendment Reg AB Exhibit L Master Mortgage Loan Purchase and Interim Servicing Agreement, dated March 24, 2004, between First National Bank of Nevada and ▇▇▇▇▇▇▇ Sachs Mortgage Company Exhibit M Comprehensive Amended and Restated Servicing Agreement, dated as of June 30September 1, 2006, between Wells Fargo Bank, National Association 2005 by and Goldman Sachs Mortgage Company Exhibit S among ▇▇▇▇▇r ▇▇ ▇▇▇▇▇ Mortgage Company and JPMorgan Chase Bank, National Association Exhibit N Amended and Restated Master Mortgage Loan Purchase Agreement, dated as of November 1, 2005, between GreenPoint Mortgage Funding, Inc. and ▇▇▇▇▇▇▇ ▇▇▇▇▇ Mortgage Company Exhibit O Servicing Agreement, dated as of November 1, 2005, between M&T GreenPoint Mortgage Corporation Funding, Inc. and Goldman Sachs Mortgage Company THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE BANK NATIONAL TRUST COMPANY ("Deutsche Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. BANK NATIONAL ASSOCIATION ("U.S. Bank"), as a custodian, JPMORGAN CHASE BANK, NATIONAL ASSOCIATION ("JPMorgan"), as a custodian (Deutsche Bank, JPMorgan and U.S. Bank, each a "Custodian" and together the "Custodians"), and WELLS FARGO BANK, NATIONAL ASSOCIATION, as master servicer (in suc▇ ▇▇▇acity, the "Master Servicer"), and as securities administrator (in such capacity, the "Securities Administrator").▇▇▇▇ Sachs Mortgage Company

Filing Obligations. 109 121 Section 13.02 Form 8-K Filings.................................................................................110 . .............................................122 Section 13.03 Form 10-D Filings................................................................................111 . ............................................123 Section 13.04 Form 10-K Filings................................................................................112 . ............................................124 Section 13.05 Form 15 Filing...................................................................................114 . ...............................................126 Section 13.06 Sarbanes-Oxley Certification.....................................................................114 Section 13.07 Report . .................................126 S▇▇▇▇▇▇ ▇▇.▇▇ ▇eport on Assessment of Compliance and Attestation.................................................. . ...........127 Section 13.08 Use of Subservicers and Subcontractors...........................................................116 . .......................128 -iv- TABLE OF CONTENTS ----------------- (Continued) SCHEDULES Schedule I Mortgage Loan Schedule EXHIBITS Exhibit A Form of Class A, Class M and Class B Certificates Exhibit B Form of Class P Certificates Exhibit C Form of Class R, Class RC and Class RX Certificates Exhibit D Form of Class X Certificate Exhibit E Form of Initial Certification of Custodian Exhibit F Form of Document Certification and Exception Report of Custodian Exhibit G Form of Residual Transfer Affidavit Exhibit H Form of Transferor Certificate Exhibit I Form of Rule 144A Letter Exhibit J-1 Form of Back-up Certification (Master Servicer) Exhibit J-2 Form of Back-up Certification (Securities Administrator) Exhibit K Form of Servicing Criteria to be Addressed in Assessment of Compliance Statement Exhibit L-1 L Form of Request for Release of Documents (U.S. Bank National AssociationTrust Company) Exhibit L-2 L-1 Form of Request for Release of Documents (Deutsche Bank National Trust Company) Exhibit L-3 L-2 Form of Request for Release of Documents (JPMorgan Chase BankThe Bank of New York Trust Company, National Association) Exhibit M Form 8-K Disclosure Information Exhibit N Additional Form 10-D Disclosure Exhibit O Additional Form 10-K Disclosure -v- TABLE OF CONTENTS ----------------- (Continued) Exhibit P Form of Master Loan Purchase Agreement, between various sellers and Goldman Sachs Mortgage Company ▇▇▇▇bit Exhibit Q Flow Servicing Agreement, dated as of ▇▇▇▇▇ ▇▇ ▇▇ January 1, 2006, between Avelo Mortgage, L.L.C. and Goldman Sachs Mortgage Company Exhibit R ▇▇▇▇▇cing Servicing Agreement, dated as of June 30dat▇▇ ▇▇ ▇f July 1, 20062004, between Wells Fargo Bank, National Association Countrywide Home Loans Servicing LP and Goldman Sachs Mortgage Company Exhibit S Master Mortgage Loan Pur▇▇▇▇▇ ▇g▇▇▇▇▇r nt, dated as of July 1, 2004, between Countrywide Home Loans, Inc. and Goldman Sachs Mortgage Company Exhibit T Amendment Re▇ ▇▇, ▇ated as of January 1, 2006, between Goldman Sachs Mortgage Company and Countrywide Home Loan▇, ▇▇▇. Exhibit U Amended and Restated Master Mortgage Loan Purchase and Servicing Agreement, dated as of November 1, 2005, between M&T GreenPoint Mortgage Corporation Funding, Inc. and Goldman Sachs Mortgage Company Exhibit V Servicing Agreement, dat▇▇ ▇▇ ▇f ▇▇▇▇mber 1, 2005, between GreenPoint Mortgage Funding, Inc. and Goldman Sachs Mortgage Company Exhibit W Second Amend▇▇ ▇▇▇ Restated Flow Seller's Warranties and Servicing Agreement, dated as of January 1, 2006, between National City Mortgage Co. and Goldman Sachs Mortgage Company Exhibit X Amended and Restated Ser▇▇▇▇▇▇ A▇▇▇▇▇ent, dated as of November 1, 2005, between IndyMac Bank, F.S.B. and Goldman Sachs Mortgage Company Exhibit Y Second Amend▇▇ ▇▇▇ Restated Master Mortgage Loan Purchase Agreement, dated as of March 1, 2006, between IndyMac Bank, F.S.B. and Goldman Sachs Mortgage Company Exhibit Z Amendment No. 1, dated a▇ ▇▇ ▇▇n▇ ▇, 2006, between Goldman Sachs Mortgage Company and IndyMac Bank, F.S.B. ▇▇▇▇▇▇t AA The Seller's Purchase, Warranties and Servicing Agreement, dated as of April 1, 2006, between Goldman Sachs Mortgage Company and Wachovia Mortgage Cor▇▇▇▇▇▇▇n ▇▇▇ibit BB Amended and Restated Flow Seller's Warranties and Servicing Agreement, dated as of December 1, 2005, between SunTrust Mortgage, Inc. and Goldman Sachs Mortgage Company TABLE OF CONTENTS ----------------- (Continued) Exhibit CC Amendment No. 1, dated as of July 1, 2006, between Goldman Sachs Mortgage Company and SunTrust Mortgage, In▇. THIS MASTER SERVICING AND TRUST AGREEMENT, dated as of September December 1, 2006 (this "Agreement"), is hereby executed by and among GS MORTGAGE SECURITIES CORP., a Delaware corporation (the "Depositor"), DEUTSCHE U.S. BANK NATIONAL TRUST COMPANY ASSOCIATION ("Deutsche U.S. Bank"), as trustee (in such capacity, the "Trustee") and as a custodian, U.S. DEUTSCHE BANK NATIONAL ASSOCIATION TRUST COMPANY ("U.S. Deutsche Bank"), as a custodian, JPMORGAN CHASE BANKTHE BANK OF NEW YORK TRUST COMPANY, NATIONAL ASSOCIATION ("JPMorganBNY"), as a custodian (Deutsche Bank, JPMorgan BNY and U.S. Bank, each as a "Custodian" and together the "Custodians"), ) and WELLS FARGO BANK, NATIONAL ASSOCIATIONASSOCIATION ("Wells Fargo"), as master servicer (in suc▇ se▇▇▇acity▇▇r (in such capacity, the "Master ServicerSer▇▇▇▇▇"), ) and as securities administrator (in such capacity, the "Securities Administrator").