I am so sorry, Regrets. You are saint to put up with this behavior from your daughter. There could be legal ramifications for you if she is ever busted in your home.

I think you should visit your other daughter alone. It is isn't right to bring this kind of trouble into Daughter #2's home. As other's pointed out, if Daughter #1 is addicted, she could have a very hard time of it if she goes anyway.