My girlfriend wants to move in with me. I live in utah and she lives in idaho. She has a four year old son. The father refused to sign the birth certificate and has never paid child support but does take the son every weekend. Is there anything he can do to stop my girlfriend and her son from moving in with me? We have also told the father that i want to adopt the son and we will pay for the son to visit him at least twice a year. Does the father have any rights to stop me from adopting the son since he refused to sign the birth certificate?