Contract

September 1, 2003 Colonial Savings, F.A. 2626 West Freeway Fort Worth, Texas 76702 Attention: F. Allen Maulsby Reference is made to that certain Correspondent Servicing Agreement, dated as of June 26, 2002 (the "Servicing Agreement") annexed as Exhibit C, by and between the Colonial Savings, F.A. (the "Servicer"), Lehman Brothers Bank, FSB (the "Bank") and Aurora Loan Services Inc. (the "Master Servicer"). This notice constitutes a "Transfer Notice" as contemplated by Section 7.01 of the Servicing Agreement. Capitalized terms used herein without definition and defined in the Servicing Agreement are used herein as defined therein. Reference is also made to that certain Assignment and Assumption Agreement, dated as of September 1, 2003 (the "Assignment") annexed as Exhibit A, by and between the Bank and Lehman Brothers Holdings Inc. (the "Owner") pursuant to which the Owner acquired from the Bank all of the Bank's right, title and interest in and to certain of the Mortgage Loans currently serviced under the Servicing Agreement and assumed for the benefit of the Servicer and the Bank the rights and obligations of the Bank as owner of such Mortgage Loans pursuant to the Servicing Agreement. The Servicer is hereby notified that the Owner has effected a Reconstitution with respect to the mortgage loans listed on the attached schedule (the "Mortgage Loans"). The Servicer is hereby advised of the following with respect to such Reconstitution and the related Mortgage Loans: Effective Date of Reconstitution: September 1, 2003 Cut-Off Date: September 1, 2003 New Owner: JPMorgan Chase Bank, as trustee for the Structured Asset Securities Corporation, Series 2003-31A Certificateholders Master Servicer: Aurora Loan Services Inc. The Servicer is also hereby advised that a REMIC election has been made with respect to the Mortgage Loans subject to the Reconstitution. By countersigning this notice and returning it to the Master Servicer named above, the Servicer hereby acknowledges and agrees that, from and after the Effective Date, the Servicer shall service the Mortgage Loans in accordance with the terms of the Servicing Agreement for the benefit of the New Owner named above, as the Owner of the Mortgage Loans. From and after the Effective Date, the New Owner named above shall have the same rights under the Servicing Agreement as the Initial Owner named therein with respect to the Mortgage Loans. 1 In addition to the terms and conditions set forth in the Servicing Agreement, the Servicer hereby acknowledges and agrees that on or before the last day of February of each year, beginning with February 28, 2004, the Servicer, at its own expense, will deliver to the Owner and the Master Servicer a Servicing Officer's certificate stating, as to each signer thereof, that (i) a review of the activities of the Servicer during such preceding fiscal year and of performance under this Agreement has been made under such officers' supervision, and (ii) to the best of such officers' knowledge, based on such review, the Servicer has fulfilled all its obligations under this Agreement for such year, or, if there has been a default in the fulfillment of all such obligations, specifying each such default known to such officer and the nature and status thereof including the steps being taken by the Servicer to remedy such default. For so long as a certificate under the Sarbanes-Oxley Act of 2002, as amended, ("Sarbanes-Oxley") is required to be given on behalf of Structured Asset Securities Corporation, Mortgage Pass-Through Certificates, Series 2003-31A (the "Trust Fund,") no later than March 15th of each year (or if not a Business Day, the immediately preceding Business Day), or at any other time that the Master Servicer, Structured Asset Securities Corporation (the "Depositor") or JPMorgan Chase Bank (the "Trustee") provides a certification pursuant to Sarbanes-Oxley and upon thirty (30) days written request of such parties, an officer of the Servicer shall execute and deliver an Officer's Certificate to the Master Servicer, the Trustee and the Depositor for the benefit of the Trust Fund and the Master Servicer, the Trustee and the Depositor and their officers, directors and affiliates, in the form of Exhibit B hereto. [Signature Page Immediately Follows] 2 LEHMAN BROTHERS HOLDINGS, INC., as Owner By:________________________________________ Name: Stanley P. Labanowski Title: Authorized Signatory Acknowledged by: COLONIAL SAVINGS, F.A., as Servicer By:_______________________________ Name: Title: 3 EXHIBIT A Assignment [INTENTIONALLY OMITTED] A-1 EXHIBIT B Structured Asset Securities Corporation 745 Seventh Avenue, 7th Floor New York, New York 10019 Aurora Loan Services, Inc. 2530 South Parker Road, Suite 601T Aurora, Colorado 80014 Re: Structured Asset Securities Corporation, Mortgage Pass-Through Certificates, Series 2003-31A --------------------------------------------------------------- Reference is made to the Transfer Notice, dated as of September 1, 2003 (the "Notice"), by and among Lehman Brothers Holdings Inc., as owner and Colonial Savings, F.A., as servicer (the "Servicer"). I, [identify the certifying individual], a [title] of the Servicer, hereby certify to JPMorgan Chase Bank, as trustee (the "Trustee"), Aurora Loan Services Inc., as master servicer (the "Master Servicer") and Structured Asset Securities Corporation, as depositor (the "Depositor"), and their respective officers, directors and affiliates, and with the knowledge and intent that they will rely upon this certification, that: 1. I have reviewed the information required to be delivered to the Master Servicer pursuant to the Servicing Agreement (the "Servicing Information"); 2. Based on my knowledge, the Servicing Information does not contain any material untrue information or omit to state information necessary to make the Servicing Information, in light of the circumstances under which such information was provided, not misleading as of the date of this certification; 3. Based on my knowledge, the Servicing Information has been provided to the Master Servicer when and as required under the Servicing Agreement; 4. I am responsible for reviewing the activities performed by the Servicer under the Servicing Agreement, and based upon the review required thereunder, and except as disclosed in writing to you on or prior to the date of this certification ( a copy of which disclosure is attached hereto), the Servicer has, as of the date of this certification, fulfilled its obligations under this Servicing Agreement; and B-1 5. I have disclosed to the accountants conducting the annual review required under Section 6.05 of the Servicing Agreement all significant deficiencies relating to the Servicer's compliance with the Servicing Agreement. COLONIAL SAVINGS, F.A. Name: ____________________________ Title: ____________________________ Date: ____________________________ B-2 EXHIBIT C Servicing Agreement See Exhibit 99.4 C-1