Credit Suisse First Boston Mortgage Securities Corp. UNDERWRITING AGREEMENT $515,280,100 (Approximate) Home Equity Mortgage Trust 2006-4 Home Equity Mortgage Pass-Through Certificates, Series 2006-4Underwriting Agreement • September 15th, 2006 • Home Equity Mortgage Pass-Through Certificates, Series 2006-4 • Asset-backed securities • New York
Credit Suisse First Boston Mortgage Securities Corp., a corporation organized and existing under the laws of the State of Delaware (the “Depositor”), proposes to sell to Credit Suisse Securities (USA) LLC (“Credit Suisse”) (the “Underwriter”) fourteen classes of the Depositor’s Home Equity Mortgage Pass-Through Certificates, Series 2006-4. Such classes have been designated as the Class A-1, Class A-2, Class A-3, Class A-R, Class M-1, Class M-2, Class M-3, Class M-4, Class M-5, Class M-6, Class M-7, Class M-8, Class M-9 and Class B-1 Certificates (collectively, the “Certificates”). The Certificates, together with the Depositor’s Home Equity Mortgage Pass-Through Certificates, Series 2006-4, Class B-2, Class P, Class X-1, Class X-2 and Class X-S Certificates, will represent the entire beneficial ownership interest in a trust fund (the “Trust Fund”) consisting of a pool of conventional, primarily fixed rate, one-to-four family, second lien residential mortgage loans (the “Initial Mortgage
CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., Depositor DLJ MORTGAGE CAPITAL, INC., Seller SELECT PORTFOLIO SERVICING, INC., Servicer OCWEN LOAN SERVICING, LLC, Servicer and Trustee POOLING AND SERVICING AGREEMENT Dated as of August 1, 2006...Pooling and Servicing Agreement • September 15th, 2006 • Home Equity Mortgage Pass-Through Certificates, Series 2006-4 • Asset-backed securities • New York
THIS POOLING AND SERVICING AGREEMENT, dated as of August 1, 2006, among CREDIT SUISSE FIRST BOSTON MORTGAGE SECURITIES CORP., a Delaware corporation, as depositor (the “Depositor”), DLJ MORTGAGE CAPITAL, INC., a Delaware corporation, as Seller (the “Seller”), SELECT PORTFOLIO SERVICING, INC., a Utah corporation, as a servicer (a “Servicer” or “SPS”) and OCWEN LOAN SERVICING, LLC, a Delaware limited liability company, as a servicer (a “Servicer” or “Ocwen”, and together with SPS, the “Servicers”) and U.S. BANK NATIONAL ASSOCIATION, a national banking association organized under the laws of the United States, as trustee (the “Trustee”).
