M.
Sounds to me that you have entirely too much going on in this little ones life to begin potty training. I would suggest waiting until after the house is finished and the new baby has arrived. He will ultimately regress when baby comes anyway, so don't stress about it now. My son was almost 4 when the new baby came and he started wetting the bed at night again. He was emptying powder all over her room, putting fingerpaints on the kitchen floor, dumping clothes out of her dresser, etc! After a couple of months everything went back to normal. I would just suggest waiting. As far as the hitting goes.......he is two. Just be consistent. It's probably just a phase. Don't give it too much attention though, because then it will become a game.