Exhibit 31 Re: FFMLT Trust 2006-FF13 (the "Trust") Mortgage Pass-Through Certificates, Series 2006-FF13, issued pursuant to the Pooling and Servicing Agreement, dated as of September 1, 2006 (the "Pooling and Servicing Agreement"), among GS Mortgage...Pooling and Servicing Agreement • April 2nd, 2007 • First Franklin Mortgage Loan Trust 2006FF13 • Asset-backed securities
