My fiance and I will be married in November. My fiance is in the US Army and wants to legally adopt, or at least make my son a legal dependent, and give him his last name, so he can be his father AND so my son can have the benefits that we do. My son's biological father has never been in the picture- has never asked for nor agreed to a paternity test, has never been called into any legal situation regarding my son, is not on the birth certificate, and basically fails to acknowledge that he even has a child. So therefore, has never had, nor wanted, any legal rights. What process would we have to go through to make my fiance my son's legal father? Do I just need to put his name on the birth certificate and request a change of name.....or?What if the "father" had no idea that the mother was pregnant, the mother and father were never married, the father did nothing pre-birth/post birth, is not on and has never been on the birth certificate, etc...I mean, this guy LITERALLY was NEVER around, aside from conception.....my son has NO ONE's name but mine on his BC. Does this affect things??