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.This is an example of a payoff letter used in a syndicated loan transaction. This payoff letter (including the defined terms such as Lenders,. Where can I get a building permit, or find out information about development services? Official Forms for Viewing and Downloading. Contra Costa County. Unincorporated. Contra.