ohio divorce and property transfer

My stepdad put his and moms property in my stepbrothers name a couple of years ago. My stepdad has been ill for a long time. The land was left from my stepgrandfather. Anyway, my stepdad told my mom he was doing it because of all of the medical bills and things like that. But, my mom thought he was just adding my stepbrothers name, not signing the whole property over to him, because it should go to my mom if anything should have ever happened to my stepdad, and I was told that half the land was suppose to go to me for me and my children too. Well now my stepbrother has complete control over the property now. Well now my stepdad thinks he may want a divorce and move out of town with my stepbrother.
My question is: Can my mom do anything about him signing over the property completely a couple years ago, just to keep her from getting it? Can she put in a claim against him for part of the property? It has been her home for over 24 years! He also used the property for a secured loan, then refinanced the loan and used the property but the loan company doesn't know that he signed it over to my brother. I don't know how he done it without the courthouse seeing the lien or what ever the loan company puts on them when you use them to secure a loan. I don't think they would do anything about it, because they all like him at the loan place, and he pays his loan every month automatically out of his bank account. So, I don't think I could get them to do anything about it.

If two or more "owners" cannot agree on what to do with a piece of property they may petition the court and the court will order a sale or refinancing etc. so that the one or more may get out of the property obligation and/or the other(s) may keep it etc.--it is often done-- (This is true in some cases even for equitable owners that have paid various amounts or have rights etc., but for various reasons, may not be on title.) You could threaten to take this action if need be. It may cause compromise which is of course what you need here now.