The official website of the City of Chicago Department of Finance, otherwise know as the Comptroller's Office. Simply click the "Set up a Payment Installment Plan with IDOR" link.A payoff agreement is an informal contract in which a creditor agrees to accept the balance of a debt owed as full payment. LoanDepot Servicing login. Obtain a mortgage amortization schedule from the lender who financed your original Mortgage loan. You can make a one-time payment or set up recurring payments within your Freedom Mortgage account. This is a standard form of payoff letter. Please do not use this form for questions related to a Westlake Auto Loan.