He and my mother got married back in the 60's & had 3 sons together. In the mid 70's they got a divorce. We haven't seen him since the 70's. 3 years ago I ran a internet search for him, and found out he died in the 90's. They had a divorce decree with the 3 of our names on it as his heirs, and that child support for the 3 of us was to be addressed later by the courts. We are all adults now, but we never received any child support, and I found out that the group that he sung with is still receiving royalty checks. I've been in contact with the attorney that's collecting & distributing the checks for the group to make him aware of our heirship, but all I've been getting from him is the run around & offers of monies that we refuse to accept. He has offered us 1/3rd of these monies after his fees (20-25%) but all the checks we received were for 1/9 because he says my dad had other children, but they were'nt proven to be his heirs, but they're still getting money. I've been trying to fix this situation for 3 years now without filing a lawsuit, but now I'm considering it, and I wanna know how to go about this procedure. I have all the documents that'll establish ours rights as his heirs. Such as my birth certificate with his name on it, my parents marriage license & their divorce decree with the 3 of our names on it. I need some advice as to what to do to get back what's been rightfully ours all of our lives that we never knew about. Please help us with some feedback & advice... I thank you in advance