I agree 100% with previous posts. I think you need him to take charge of his own responsibilities. If you weren't here...he would have to. The more people he tells, the more he is accountable for his actions, whatever they may be.
AH should tell his landlord, etc. the situation and deal with what is to come. You can't protect him and you can't baby him. He is an adult.
Recently I've been in the same situation...wanting to help STBEX but 'detaching' because I've been disappointed too many times. I've put too much energy into fighting his battles for him when he should have been fighting them himself. If he really wants the help and is true to following through with treatment, he'll find a way...as well as the 'compassion' and understanding from others who are also willing to help in his treatment.
Best of luck to you...when you feel you need it...come to SR. You'll get the support you need to stay strong.