You cannot have your dad living with you. It's likely he would steal from you, if you had anything to steal. Very possibly, your dad may never grow up. At 65 y.o., he is eligible to collect Social Security. He can survive on that and other subsidies he may qualify for. As an alcohol and drug abuser and gambler, he probably will blow any money he gets his hands on. That's beyond your control. He's headed for life in the street, and that's on him. The home you lived in since childhood was your parents' home. It was his to keep or lose, and he lost it. Your responsibility, now, is to maintain a residence for yourself, which you are doing. Maintaining yourself is enough for you to cope with.