Dad has since passed, mom is 85. Daughter who bought the house since divorced, moved out and ex husband owns it now. Daughter now has left boyfriend, moved back with HER daughter and now her daughter wants her out as she is too difficult to live with. Long story short, now she wants to move in with 85 yr old mom and ex husband will not say no, says its up to my mom as he knows its her daughter, but is extremely upset and says the contract they signed yrs ago will then be broken and he has the right to raise my moms rent. I told my sibling this and she is so in denial saying, "oh he would never do that". If he does I told her SHE has to pick up the difference in rent. Poor mom is being manipulated, I have no room for her at my house, and everyone is calling me. I believe there is not much I can do since there is a contract. Do I need to get a lawyer now? I told sibling she cant live there, but wont listen, will do what she wants.