The Land Records Division is located on the 3rd Floor of the Fairfax County Courthouse at 4110 Chain Bridge Road, Suite 317, Fairfax, VA 22030. Creating a payoff letter is essential to any loan or mortgage repayment process.Our free templates and this guide can help you get started. 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 a standard form of payoff letter. Click here to find the form you need to fill out. If you haven`t signed up for your online account yet, click here to get started. Welcome letter and several time-sensitive forms that will need to be filled out. - See my sample letter in the materials, along with the sample creditor Proof of.