WASHINGTON MUTUAL MORTGAGE SECURITIES CORP., as Depositor and Master Servicer and DEUTSCHE BANK NATIONAL TRUST COMPANY, as Trustee and DEUTSCHE BANK TRUST COMPANY DELAWARE, as Delaware Trustee POOLING AND SERVICING AGREEMENT $3,267,405,771.83...Selling and Servicing • March 10th, 2005 • WaMu Mortgage Pass-Through Certificates, Series 2005-Ar2 • Asset-backed securities • Delaware
