0000914121-07-002676 Sample Contracts

and
Servicing Agreement • December 12th, 2007 • Wells Fargo Mortgage Backed Securities 2007-Ar7 Trust • Asset-backed securities • New York
EXHIBIT 1.1 WELLS FARGO ASSET SECURITIES CORPORATION Mortgage Pass-Through Certificates (Issuable in Series) UNDERWRITING AGREEMENT ----------------------
Underwriting Agreement • December 12th, 2007 • Wells Fargo Mortgage Backed Securities 2007-Ar7 Trust • Asset-backed securities • New York