goodgran BPD has been mentioned twice, and I was also thinking that, reading your posts. I have experience of this in my late husband's family, and believe me, however much you give, it will never ever be enough! Perhaps read up on BPD. Even if there is no diagnosis, she is exhibiting long term emotional difficulties, and there is help for families to learn healthy boundaries. She seems to have got stuck as that 15 year old, and your support, financial and in kind, is not helping her to grow up. The risk for you and your DH is that you will become ill, and then your ability to help the GC will be compromised. Please don't sell your house and give her money - she needs a budgeting plan, as others have said. Get yourself some counselling too. Good luck. 