Chill Bro, you asked for advice and thats what I am giving you. If the family are as you stated a bunch of greedy barstards, then for the sake of your children, may I suggest that you may have to employ a lawer. I am only going by what you have stated here. If you are concerned about the childrens best interest in this matter then it may do you best to get involved and not hide behind them. Don't take this the wrong way, but we are talking about the children and their rights here. I am sure you will know better than anyone, as their father, what needs to be done.