All the good people on here have given you good advice, she is not entitled to any of your house.So do not be co-erced into thinkng that you owe her. You will need to support your son and would advise that you go to your Citizens Advice bureau and talk to them .The fact that she cannot pay her rent is not your problem , let her sort it out.Do not be tempted to make her any future loans , if your son needs anything , take him with you and buy it, do not just hand over cash willy nilly.Keep a record in a notebook of all of youir financial transactions with her and get her to sign for the maintenance which she does at the mo.Do not fall for any sob stories and do not allow your self to be blackmailed over your son.Your duty is to him , not her and don't get taken in by her account of the mess she says she is in.The very best of luck Brenda.