Date: To: Mississippi Home Corporation. AGMB Handles Mortgage Assignments for the Following Lenders: Click on the bank name to find the forms.Fill out the form for the selected lender. This is your authorization to forward a mortgage payoff letter to: Best Homes Title Agency. 23938 Research Drive. Complete our secure online application. Secure Online Portal. A mortgage payoff letter can come in two forms. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan. Like FHLB, the Federal Home Loan Mortgage Corporation provides credit and liquidity in the housing market.