If the biological father does not have have legal custody, then, no, he can't.
no way . boyfriend is not yet a related bond , one must not depend on an unrelated relationship for a great responsiblity
No, he shouldn't be able to if she is legally married. If she was underage at the time of marriage and the custodial parent signed off on the marriage and that should have been the end of parental custody.
no, your mother (or legal guardian) has to sue
Not unless he is the legal guardian.
If you are adopted, your biological father has no legal standing. And there is no requirement that any parent sign a wedding certificate. If you are underage, you may need signatures to obtain the marriage license and it would be the adoptive parent that would have to sign.
Depends on the state
Yes , the biological father will be held legally responsible for the support of his child .
Yes, say if the woman had the child then married your dad, no, but if the boys biological father is your biological father, you are related
No, only the biological father will be assessed child support.
No, as a biological parent, you should be entitled to more rights than any non-biological guardian, especially if you have partial custody, or visitation rights.
Except in an adoption, there is no such person as a "non biological father." The only man who should be signing a birth certificate is the child's biological father. Any other man who signs it is making an illegal statement.
Under 18 require parental permission to get married. In some places it requires a court order.