Hello, and a big hug to you.
It's a process in leaning how to deal with those we love who are addicts. Attorneys are only there to do what is right for you legally, not what is right to fight addiction. Lesson learned, you cannot turn back time.
You have offered everything you can, love and recovery. Turn him over to God. You may not be able to hear the wisdom about yourself in your own post, but I definitely can. Keep working on it!
Many hugs and prayers coming your way!