Hi again,

Thank you for the clarification.

In addition to being my father's only child and me only knowing him as my only father my entire life, I have come to discover that after my mom(who is now deceased) remarried, her new husband adopted me and therefore his last name is XXXXX XXXXX birth certificate. They were divorced just a few years later. Does that now not make me my biological father's Heir?

General Laws, c 210, section 7:

"Section 7. A person adopted in accordance with this chapter shall take the same share of that property which the adopting parent could dispose of by will as he would have taken if born to such parent in lawful wedlock, and he shall stand to the kindred of such adopting parent in the same position as if so born to him. If the person adopted dies intestate, his property shall be distributed according to chapters one hundred and ninety and one hundred and ninety-six among the persons who would have been his kindred if he had been born to his adopting parent in lawful wedlock. The apportionment and distribution shall be ascertained by the court. A person shall by adoption lose his right to inherit from his natural parents or kindred, except when one of the natural parents of a minor child has died and the surviving parent has remarried subsequent to such parent’s death, subsequent adoption of such child by the person with whom such remarriage is contracted shall not affect the rights of such child to inherit from or through the deceased parent or kindred thereof. [Thus, if your father died first, and then your mother remarried, and then you were adopted by your stepfather.... you could still inherit through your father's line... But I don't think that is your situation. Your father died long after, right? Typically, a father must agree to allow his parent/child legal ties to be terminated, so it is likely that your father agreed to end his parental ties. However, you may want to look into whether the adoption was legal, if you think your father didn't do that, because if you could prove the adoption was not legal, you can void it. And then inherit as your father's heir.]
..."

Hope this helps figure it out - and I wish it to be good news for you.

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