They are in the 70s and my grandmother just moved into a nursing home. I have suggested that they all move closer to me but they refuse to sell their home. My mother's solution is to have my Dad stay with me so she can keep his income to support the mortgage of their house. I find this ridiculous. I really am at a loss on what to do.
I would tell your mother you will absolutely NOT take your father in so she can keep his income to pay for the mortgage..........I agree that such an idea is ridiculous. She either agrees to work things out or she should file for divorce.
Best of luck!