A payment plan agreement outlines an installment plan to repay an outstanding balance over a specified time frame. This document provides a sample payoff request letter that can be used as a guide.Requests may be sent to State Home Mortgage via email, as long as the form is completely filled out. From the new Servicing Digital Portal, you can access and manage all of your mortgage loan information, and make your monthly payment online! You will need to include all relevant information in the letter such as the loan amount, any outstanding payments, and the date of repayment. Payoff of first mortgage loan. 103. One form tells borrowers the remaining principal amount and interest they have to pay to close out the loan. (TMIS) and its subsidiaries.