First, your son's father's conviction has exactly nothing to do with the situation.
Regarding the adoption situation, you wait until after you are married. Then you petition the court for your husband to adopt your son.
No. If the fiance is the natural father, then he does have rights to his son. Getting married doesn't give him legal rights to your child (assuming he is not the father). He must adopt in order to have legal rights.
Only if the non-custodial parent give up his parental rights.
now a stepfather can't adopt a child without the concent of the child's father
No she did not adopt him thats his real mother and father
no
He doesn't have to adopt the baby. He's already the legal father.
Your actual father (biological father or husband of your mother at the time of your birth) does not need to adopt you; you are already his child. What is usually more relevant is "how does your step-father adopt you" or "how does your dad get exclusive custody of you." The answers to these questions differ greatly from state to state and country to country.
If your birth father allowed your step father to adopt you, you do not have rights to your birth father's estate where I am sitting; however, 10 feet behind me you do. See a lawyer.
Contact a lawyer dealing with adoptions. Since you have all the papers it shouldn't be a problem.
absolutely not, no one can adopt any one without the proper court orders
You still must have permission of the father. There are a few states where if you're been denying the father access to the child for six months or more, the permission is not needed.
ask a vet she or he would know.