Good for you. A plan is good. I second what Anvil said. I have learned the hard way. My X has said all sorts of lies about what my kids have said or not said.
I hate to say this, but how much is the home worth to you? How much equity is in it? Is it worth all the trauma of staying?
I look at how much I ended up paying, as I was so desperate to keep my house. In the end, I think I wish I would have just went with selling it and starting fresh.
It's different circumstance by circumstance of course. I certainly would be keeping track of the financial abuse. $1000 per month on this? Wow. It's so nuts the stuff they make legal. I am glad you are finding a counselor. That's important. Try one out, and if you don't like him or her, try out another. Counseling has been a God send for my girls.
You can only do so much. Many hugs!