Good for you! I admire your strength. I don't know how old your son is, but I agree with dancingnow, as long as you have a set schedule for your son to see his dad then I'd be willing to bet he'll probably welcome the move. No doubt he is picking up on and effected by the turmoil your AH's drinking has caused.
I do hope his changes are permanent but if they're not, you're putting yourself and your son in a better position regardless. That's $20,000 well spent if you ask me.
