@Cooper is doing the best he can, but he lives in New York. I personally don't see it as his responsibility to take on Daddy's issues. He has already spent tons of time on this, both posting here and in contact with the hospital. Don't forget, he is the one who was able to get the police to do a welfare check on Daddy. He is also managing the site, at least as I understand it.
So, my suggestion, is not to put any additional duties on Cooper that he does not voluntarily take on himself.