@John Horner I am an attorney, living in Ohio, but not licensed here. You should DEFINITELY call a local real estate attorney and sit down and talk to them. Most of these situations can be solved relatively easily, though not quickly. Find a good attorney THAT WONT CHARGE YOU FOR THE INITIAL CONSULTATION. Then, when they explain to you the course of action, pay the fee, if you think it's reasonable in relation to the problem, and a strongly worded letter from an attorney is alot more threatening than an agent. If he owes her any money, they could threaten attachment of a civil judgment of $$ on him, and that threat might leave him to sign the agreement in lieu of having to owe her money. If I were you, I would ask an attorney if threatening to sue him for back mortgage payments, maybe in lieu of him signing away his right, would be a good course of action. I dont know anyone in Columbus though. Best of luck, and keep me updated!