I believe my brother is wrongly claiming my Mom as a dependant when she is not. She paid for her in law apartment years ago but has a signed document stating she has no $$ interest in the house. she buys her own food, does her own cleaning, laundry, etc... Pays for her own insurance and medicine, and gives my brother $250.00/ month to cover electric, cable, and telephone. Even though she lives at my brothers house, her in law apartment is totally separate. I just found out that my brother has been claiming my Mom for over 5 years even though none of the requirements have been made. what can I do to stop this?