I hope you get some great free advice, but odds are that this situation is incredibly complicated and involves a lot of details we don't have access to and some very complicated laws and contracts. Odds are that the only good answer anybody here will be able to tell you is "Go and find the best attorney in a big firm that you can find who has experience in this domain who can clearly spell out your options and give you the best possible advice. If this is about life-changing money, spending a few thousand bucks on professional counsel will be worth it for this situation."