Fill out this form to apply. DOWNLOAD. Payoff requests, including borrower's authorization, should be directed to the servicer of the first mortgage.Scroll halfway down on the right-hand side under "Want to pay off your loan?" and click 'Request Payoff'. To request a change to a reserved loan, complete the Request for Change to. 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. Do you need a loan payoff request form?