If you're in the middle of a divorce and you're worried that your spouse might try to sell your joint property, be aware that divorce law allows for the attachment of liens to your property to keep it safe. No lender or buyer would be able to bypass that lien.
Divorce law allows for fraud claims regarding fraud used in the inducement of marriage, but you should be very careful in trying to claim this. Among other things, you have to prove that it is material, that it has hurt you substantially, and that you could not have detected it before the marriage.