I'm afraid I don't have any advice for you, but I wanted to weigh in with some support. I'm in a fairly similar situation and my heart goes out to you. I think it's a good idea to talk to a lawyer if you can afford one to get an idea of your options, and what type of documentation will be admissable.
Good luck, and keep posting here to let us know how it's going and how you're doing. ((hugs)) and well wishes from NC.