## Related to *One-Month LIBOR Pass-Through Rate*

**Net WAC Pass-Through Rate** With respect to the Class A Certificates and the Mezzanine Certificates and any Distribution Date, a rate per annum equal to the product of (x) the weighted average of the Expense Adjusted Mortgage Rates of the Mortgage Loans, weighted based on their Stated Principal Balances as of the first day of the related Due Period and (y) a fraction, the numerator of which is 30 and the denominator of which is the actual number of days elapsed in the related Interest Accrual Period. With respect to each REMIC I Regular Interest and any Distribution Date, a rate per annum equal to the weighted average of the Expense Adjusted Mortgage Rates of the Mortgage Loans, weighted based on their Stated Principal Balances as of the first day of the related Due Period.

**One-Month LIBOR** With respect to any Accrual Period, the rate determined by the Trustee on the related Interest Determination Date on the basis of the rate for U.S. dollar deposits for one month that appears on Telerate Screen Page 3750 as of 11:00 a.m. (London time) on such Interest Determination Date. If such rate does not appear on such page (or such other page as may replace that page on that service, or if such service is no longer offered, such other service for displaying One-Month LIBOR or comparable rates as may be reasonably selected by the Trustee), One-Month LIBOR for the applicable Accrual Period will be the Reference Bank Rate. If no such quotations can be obtained by the Trustee and no Reference Bank Rate is available, One-Month LIBOR will be One-Month LIBOR applicable to the preceding Accrual Period. The establishment of One-Month LIBOR on each Interest Determination Date by the Trustee and the Trustee’s calculation of the rate of interest applicable to the Class A Certificates and Class M Certificates for the related Accrual Period shall, in the absence of manifest error, be final and binding.

**One Month LIBOR Rate** means, with respect to any interest rate calculation for a Loan or other Obligation bearing interest at the Alternate Base Rate, a rate per annum equal to the quotient (rounded upward if necessary to the nearest 1/16th of one percent (0.0625%)) of (i) the rate per annum referred to as the BBA (British Bankers Association) LIBOR RATE as reported on Reuters LIBOR page 1, or if not reported by Reuters, as reported by any service selected by Administrative Agent on the applicable day (provided that if such day is not a Eurodollar Banking Day for which a Eurodollar Rate is quoted, the next preceding Eurodollar Banking Day for which a Eurodollar Rate is quoted) at or about 11:00 a.m., London time (or as soon thereafter as practicable), for Dollar deposits being delivered in the London interbank eurodollar currency market for a term of one month commencing on such date of determination, divided by (ii) one minus the Reserve Requirement in effect on such day. If for any reason rates are not available as provided in clause (i) of the preceding sentence, the rate to be used in clause (i) shall be, at Administrative Agent’s discretion (in each case, rounded upward if necessary to the nearest one-sixteenth (1/16) of one percent (0.0625%)), (1) the rate per annum at which Dollar deposits are offered to the Administrative Agent in the London interbank eurodollar currency market or (2) the rate at which Dollar deposits are offered to the Administrative Agent in, or by Wells Fargo to major banks in, any offshore interbank eurodollar market selected by Administrative Agent, in each case on the applicable day (provided that if such day is not a Eurodollar Banking Day for which Dollar deposits are offered to Administrative Agent in the London interbank eurodollar currency market, the next preceding Eurodollar Banking Day for which Dollar deposits are offered to Administrative Agent in the London interbank eurodollar currency market) at or about 11:00 a.m., London time (or as soon thereafter as practicable) (for delivery on such date of determination) for a one month term. Each determination by Administrative Agent pursuant to this definition shall be conclusive absent manifest error.

**Pass-Through Rate** Any of the Class A-1 Pass-Through Rate, the Class A-2 Pass-Through Rate, the Class A-3 Pass-Through Rate, the Class A-4 Pass-Through Rate, the Class A-5 Pass-Through Rate, the Class A-SB Pass-Through Rate, the Class A-S Pass-Through Rate, the Class B Pass-Through Rate, the Class C Pass-Through Rate, the Class D Pass-Through Rate, the Class E Pass-Through Rate, the Class F Pass-Through Rate, the Class G Pass-Through Rate, the Class X-A Pass-Through Rate, the Class X-B Pass--Through Rate, the Class X-D Pass-Through Rate, the Class X-E Pass-Through Rate, the Class X-F Pass-Through Rate or the Class X-G Pass-Through Rate, as the case may be.

**Three-Month LIBOR Rate** means the rate determined in accordance with the following provisions:

**Class A Fixed Pass-Through Rate** As to any Distribution Date, the rate per annum set forth in Section 11.01.

**3-Month LIBOR** means the London interbank offered interest rate for three-month, U.S. dollar deposits determined by the Trustee in the following order of priority:

**Three-Month LIBOR** means the rate (expressed as a percentage per annum) for deposits in United States dollars for a three-month period commencing on the first day of a Dividend Period that appears on the Reuters Screen LIBOR01 Page as of 11:00 a.m. (London time) on the LIBOR Determination Date for that Dividend Period. If such rate does not appear on Reuters Screen LIBOR01 Page, Three-month LIBOR will be determined on the basis of the rates at which deposits in United States dollars for a three-month period commencing on the first day of that Dividend Period and in a principal amount of not less than $1 million are offered to prime banks in the London interbank market by four major banks in the London interbank market selected by the Calculation Agent (after consultation with the Company), at approximately 11:00 a.m., London time, on the LIBOR Determination Date for that Dividend Period. The Calculation Agent will request the principal London office of each of such banks to provide a quotation of its rate. If at least two such quotations are provided, Three-month LIBOR with respect to that Dividend Period will be the arithmetic mean (rounded upward if necessary to the nearest whole multiple of 0.00001%) of such quotations. If fewer than two quotations are provided, Three-month LIBOR with respect to that Dividend Period will be the arithmetic mean (rounded upward if necessary to the nearest whole multiple of 0.00001%) of the rates quoted by three major banks in New York City selected by the Calculation Agent (after consultation with the Company), at approximately 11:00 a.m., New York City time, on the LIBOR Determination Date for that Dividend Period for loans in United States dollars to leading European banks for a three-month period commencing on the first day of that Dividend Period and in a principal amount of not less than $1 million. However, if fewer than three banks selected by the Calculation Agent to provide quotations are quoting as described above, Three-month LIBOR for that Dividend Period will be the same Three-month LIBOR as determined for the previous Dividend Period or, in the case of the Dividend Period beginning on April 30, 2018, 2.920%. The determination of Three-month LIBOR for each relevant Dividend Period by the Calculation Agent will (in the absence of manifest error) be final and binding.

**Adjusted One Month LIBOR Rate** means, for any day, an interest rate per annum equal to the sum of (i) 2.50% plus (ii) the Adjusted LIBO Rate for a one month interest period on such day (or if such day is not a Business Day, the immediately preceding Business Day); provided that, for the avoidance of doubt, the Adjusted LIBO Rate for any day shall be based on the LIBO Screen Rate at approximately 11:00 a.m. London time on such day; provided further, that, if the LIBO Screen Rate at such time shall be less than zero, such rate shall be deemed to be zero for purposes of this Agreement.

**-Through Rate** As to each Class of interest-bearing Certificates, the per annum rate set forth or described in the Preliminary Statement.

**Class X-D Pass-Through Rate** The Pass-Through Rate for Class X-D Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class D Certificates. The Pass-Through Rate applicable to the Class X-D Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class X-G Pass-Through Rate** The Pass-Through Rate for Class X-G Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class G Certificates. The Pass-Through Rate applicable to the Class X-G Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Daily One Month LIBOR** means, for any day, the rate of interest equal to LIBOR then in effect for delivery for a one (1) month period.

**Class X-C Pass-Through Rate** The Pass-Through Rate for Class X-C Certificates for any Distribution Date will be a per annum rate equal to the excess, if any, of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the weighted average of the Pass-Through Rates of the Class C and Class D Certificates for such Distribution Date, weighted on the basis of their respective Certificate Balances immediately prior to that Distribution Date. The Pass-Through Rate applicable to the Class X-C Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class X-H Pass-Through Rate** The Pass-Through Rate for Class X-H Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class H Certificates. The Pass-Through Rate applicable to the Class X-H Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Six-Month LIBOR** means, with respect to (i) each of the underlying mortgage loans in Loan Group 5YR-H, Loan Group 7YR-H and Loan Group 10YR-H and any applicable loan reset date and (ii) the class B certificates and any applicable Interest Accrual Period, the IBA’s six month London interbank offered rate for United States Dollar deposits, as displayed on the LIBOR Index Page, as determined on the related Six-Month LIBOR Determination Date; provided, however, that, in the event Six-Month LIBOR with respect to any Interest Accrual Period is less than zero, Six-Month LIBOR for such Interest Accrual Period will be deemed to be zero. With respect to the underlying mortgage loans in Loan Group 5YR-H, Loan Group 7YR-H and Loan Group 10YR-H and each loan reset date, Six-Month LIBOR for such underlying mortgage loans will be determined by the master servicer. With respect to the class B certificates and each Interest Accrual Period, Six-Month LIBOR for the Pass-Through Rate on such class of certificates will be determined by the Calculation Agent.

**Weighted Average Pass-Through Rate** For any Distribution Date, the weighted average of the Pass-Through Rates on the Mortgage Loans as of the second preceding Due Date (after giving effect to the payments due on the Mortgage Loans on that Due Date).

**Class X Pass-Through Rate** With respect to each Class of Class X Certificates, for any Distribution Date, the excess, if any of (a) the Weighted Average Net Mortgage Rate for such Distribution Date, over (b) the weighted average of the Pass-Through Rates on the Underlying Classes of Principal Balance Certificates for such Distribution Date, weighted on the basis of their respective Certificate Balances immediately prior to such Distribution Date (or, with respect to any Class of Class X Certificates with one Underlying Class of Principal Balance Certificates, the Pass-Through Rate of such Underlying Class for such Distribution Date).

**Class X-F Pass-Through Rate** The Pass-Through Rate for Class X-F Certificates for any Distribution Date will equal the excess, if any of (a) the Weighted Average Net Mortgage Rate for the related Distribution Date, over (b) the Pass-Through Rate of the Class F Certificates. The Pass-Through Rate applicable to the Class X-F Certificates for the initial Distribution Date shall be the rate set forth in the Preliminary Statement hereto.

**Class A-1 Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to 1.35860%.

**Class A-AB Pass-Through Rate** For any Distribution Date, a per annum rate equal to 2.984%.

**Class A Pass-Through Rate** As set forth in the Upper-Tier REMIC section of the Introductory Statement of this Agreement.

**Weighted Average Net Mortgage Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the fraction (expressed as a percentage) the numerator of which is the sum for all Mortgage Loans of the product of (i) the Net Mortgage Pass-Through Rate for each such Mortgage Loan as of its respective Due Date in the month preceding the month in which such Distribution Date occurs and (ii) the Stated Principal Balance of each such Mortgage Loan as of the immediately preceding Distribution Date, and the denominator of which is the sum of the Stated Principal Balances of all Mortgage Loans as of the immediately preceding Distribution Date.

**Class A-SB Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to 3.3660%.

**Class C Pass-Through Rate** With respect to any Distribution Date, a per annum rate equal to the Weighted Average Net Mortgage Rate for such Distribution Date.