It lays out each fee and dollar still due before you completely pay off your mortgage. Here's how it works.Filling out this form is straightforward. A secured lender shall prepare and deliver a payoff demand statement to the person who has requested it within fourteen days after receipt of the demand. 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. Desert Financial provides exceptional member and community service and a full range of financial solutions, with top-rated mobile and online banking. K. Summary of Seller's Transaction. J. Summary of Borrower's Transaction.