Visit a branch to speak with a Customer Service Representative to get started today. We've got the answers in our FAQs.Edit, sign, and share private mortgage payoff letter template online. No need to install software, just go to DocHub, and sign up instantly and for free. The Participation Application from Seller in which Seller seeks approval to participate in the Low Interest Rate Mortgage Program. (b). Create a Loan Payoff Letter online and download it as a PDF or Word document. Customize and print a blank Loan Payoff Letter for free. 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.