How to fill out the Ohio Attorney General Payoff Request Instructions? 1. Gather necessary documents and information. 2.Gov) is available to expedite your requests for payoff. 1) Call the mortgage department and request an official principal payoff letter. The Ohio Payoff form is a critical document used to request payoff information regarding debts owed to the State of Ohio. This form is primarily completed. I want to pay off my mortgage. Have questions about your loan? Browse our frequently asked questions to find answers. To exempt ODOT from the liability of paying a conveyance fee, the agent shall fill out the DTE form 100EX while at the Auditor's Office.