I think its pretty much gospel around here to not move out, and certainly talk to a lawyer.

There's no reason he can't be more of an active father- without you having to move out.

Arrange some set times for him to take care of them. He can take them to his Mom's house or you can be out of the house and get a break.

2 Ds: 7 and 4
BD and Sep: 7/14
Divorce Final 2/16