EXECUTION
AMENDMENT NO. 1 TO POOLING
AND SERVICING AGREEMENT
This AMENDMENT NO. 1 (“Amendment No.
1”) is dated and effective as of April 1, 2007, by and
between CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., as
depositor (the “Depositor”), DLJ MORTGAGE CAPITAL,
INC., as seller (the “Seller”), WELLS FARGO BANK, N.A.,
as master servicer (in such capacity, the “Master
Servicer”) and trust administrator (in such capacity, the
“Trust Administrator”), TAYLOR, BEAN & WHITAKER
MORTGAGE CORP., as servicer (the “Servicer:”) and U.S.
BANK NATIONAL ASSOCIATION, not in its individual capacity, but
solely as trustee (the “Trustee”).
WITNESSETH THAT:
WHEREAS, the Depositor, the Seller, the Master
Servicer and Trust Administrator, the Servicer and the Trustee
heretofore executed and delivered a pooling and servicing agreement
dated as of August 1, 2006, relating to TBW Mortgage Pass-Through
Certificates, Series 2006-4 (the “Pooling and Servicing
Agreement”);
WHEREAS, the Depositor, the Seller, the Master
Servicer and Trust Administrator, the Servicer and the Trustee
desire to amend the Pooling and Servicing Agreement with respect to
certain matters set forth herein;
WHEREAS, Section 12.01(a)(v) of the Pooling and
Servicing Agreement provides that such agreement may be amended
without the consent of any of the Holders of the Certificates to
make provisions with respect to matters or questions arising
thereunder, subject to the conditions set forth in such
section;
NOW, THEREFORE, in consideration of the
foregoing and other good and valuable consideration, the receipt
and sufficiency of which are hereby acknowledged, it is mutually
covenanted and agreed, as follows:
ARTICLE I
AMENDMENT OF THE POOLING AND
SERVICING AGREEMENT
Section 1.01. Amendment of Pooling and
Servicing Agreement .
The definition of Qualified Substitute
Mortgage Loan is hereby deleted in its entirety and replaced
with the following:
“ Qualified Substitute Mortgage
Loan : One or more Mortgage Loans substituted by the Seller for
one or more Deleted Mortgage Loans which must, on the date of such
substitution, as confirmed in a Request for Release, substantially
in the form of Exhibit L, individually or in the aggregate and on a
weighted average basis, as applicable, (i) have a Stated Principal
Balance, after deduction of the principal portion of the Scheduled
Payment due in the month of substitution, not in excess of, and not
more than 10% less than the Stated Principal Balance of the Deleted
Mortgage Loan; (ii) be accruing interest at a rate no lower than
and n
