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.Filling out this form is straightforward. Complete the form below to submit your payoff request. If you have a current need for mortgage payment assistance, please contact your loan servicer. These pages serve as an archive and for reference purposes only. Secured loana loan that uses collateral in the case of default. Securitythe real estate used as collateral in case of default when money is borrowed.