WASHINGTON MUTUAL MORTGAGE SECURITIES CORP., as Depositor and Master Servicer and U.S. BANK NATIONAL ASSOCIATION, as Trustee and CHRISTIANA BANK & TRUST COMPANY, as Delaware Trustee POOLING AND SERVICING AGREEMENT Washington Mutual Mortgage Securities...Pooling and Servicing Agreement • March 12th, 2003 • Wamu Mortgage Pass Through Cert Ser 2003-S1 • Asset-backed securities • Delaware
Copies of the Mortgage Loan Schedule (which has been intentionally omitted from this filing) may be obtained from Washington Mutual Mortgage Securities Corp. or U.S. Bank National Association by contacting,
