Still don't think you should move out. I think you need to stay in the house and let him see positive changes.
As far as GAL - I have managed to have one with an 11 month old. I know with your older kids, it should be even easier. GAL doesn't mean going out alone and doing things.
Me- 29 H - 36 T - 5y M - 2y D - 11 months BD#1 June 2013 BD#2 H files 10/28/13 Retrouvaille Nov 13 BD #3 H Files 2nd time 4/22/14 Fires L 7 days later. No court dates set Supposedly he's moving out?