I too would explore palliative care options in your community. That's what they are there for. If your 20-year-old is concerned that he's not being taken care of, in such facilities she is more than able to visit and offer support as often as she would like, in a safe situation. I certainly would not open my home - my sanctuary - to someone who was drunk, rude, unappreciative, and bent on self-destruction, no matter what my past relationship to him was. I personally am not built to take a front-row seat to someone's slow-motion suicide. (I hope that your daughter can learn more about alcoholism so that she really internalizes the fact that HIS CHOICES brought him to this point, not anyone else's) Wishing you luck with this!