My ex- and I still share equity in our home. Since the divorce she has had a man move in. Their combined incomes are about 4 times what I make. He sold his condo when he moved into the house and has the money invested. Under the terms of the divorce agreement my ex-wife can stay in the house for another two years (until my youngest reaches 18). My question is: does this guy moving in qualify as some sort of "material change" where I can try to get my equity out sooner? She has to refinance next year, and I'm thinking of not signing off on the refi unless I get my equity. This guy can well afford to buy me out. I think I should at least be compensated for him living off my equity.

Do I have any room to move on this or am I simply out of luck because the original divorce agreement can't be changed?