Maybe its just me, but it seems like he's using you. He's a lawyer who makes good money but can't afford a place of his own?!?! Ok, you're in Cali, but still. He bounces from your place to his mom's place, and drags the kids along with him? He needs to get his stuff together, and first of all that should be finding a stable home for himself and his kids. He bounced from his home with his wife, to his mom's house, to your house. Why should he be an adult when everyone else will take care of him? This is a HUGE red flag. Don't settle for this "adopted" family because you want a family of your own. There is still time to start a family, I just wouldn't do it with that guy.