Good luck w/ it CBAD. Change in people is hard to come by but you gotta do what you gotta do.
I think the only thing that really changes people is going through some kind of personal trauma. Lots of addicts say one has to hit bottom before one can recover.
You never know – maybe getting thrown out of your house will be the trauma he needs, or maybe it will send him further down a painful path that he needs to go in order to realize how bad off he is.