For any additional questions please us at (631) 852-2000. 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? This is an example of a payoff letter used in a syndicated loan transaction. This payoff letter (including the defined terms such as Lenders,. Accordingly, it is essential to understand how and when to demand production of the original mortgage documents throughout the foreclosure litigation process.