Can I change my daughter's last name without her biological father's permission?
I'm trying to find out, for future references, what I will have to do to change my daughters last name when I get married. Her biological father is NOT on her birth certificate, nor does she have his last name. She has my last name. He did not meet her until she was almost 6 months old, and left before she was 11 months old. He was NEVER around, and never helped with her, held her, or anything. All he did was party, as well as do other "unmentionables". In that time, however, he did manipulate me into letting him sign and acknowledgement of paternity (threatening that if I didn't let him, he would run away with her, etc.) I was stupid back then and was afraid of the worst, so I let him sign it. My fiancé has been the only "daddy" she has ever known, and when we get married he wants to adopt her and change her last name to his, and I couldn't be happier about this. But can we do this without the biological father being involved, considering we have never seen/heard from him, received any type of physical or financial support, or even know of his whereabouts?