Edit, sign, and share payoff form online. No need to install software, just go to DocHub, and sign up instantly and for free.Edit, sign, and share private mortgage payoff letter template online. 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. How to fill out the Payoff Request Letter Templates? Loan Payoff Request correspondence on SSFCU letterhead. Instructions. Fill out online and submit.