Despite what some of you think, I was not ignoring any of you. Yes, I was online and reading other posts and threads, but I didn't want to post anything until there was something to post.
I also want to thank everyone for taking the time out to respond. Your kind words and advice were and still are, very much appreciated.
As of right now H still doesn't know where the kids and their "mother" are going to stay. He does have some leads, which he didn't have before for places that take month to month or six month leases. (He kept calling apartment complexes, which only do yearly leases.) He's been working with his contractor's friend, a realtor, who has been helping. (Again, should this all fall in him? No, but unfortunately it is what it is.)
As for the million dollar question: is his ex going to stay with us? HELL TO THE MOTHERFUCKING NO!!!!! Not for a day, or even an hour! My foot is not only down, it's cemented to the ground, and he knows it too! Ironclad HELL NO!!!! Worse comes to worse they will stay in an extended stay hotel. As other PPs have said he would have to suck it up and pay for more expensive housing. I love my H, but I told him that he needs to clean up the mess he created.
In the meantime though we're going to take the kids for a week. I'm really looking forward to it. H will be at work, but since today is my last day of school I will be home to do things with them. I especially want to take them to see the Statue of Liberty and Battery Park. My friend has a daughter who is the same age as my older stepdaughter and they and my younger stepdaughter get along great. Despite all of this stress going on now, in my mind the summer is off to a great start!

