should I let my friend (who is a heroin addict but trying hard to quit) move in with me

I have a friend who is trying to quit heroin. He goes to n.a. And a.a. Meeting with me and has been a close friend for years. He was living with his mother, step dad, and brother( who Is also a addict). His mother killed herself a couple days ago. He really needs am enviorment change and i’m wondering if I should help.