0000914121-06-003393 Sample Contracts

and
Servicing Agreement • November 7th, 2006 • Wells Fargo Mortgage Backed Securities 2006-Ar18 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 • November 7th, 2006 • Wells Fargo Mortgage Backed Securities 2006-Ar18 Trust • Asset-backed securities • New York