I want to have my daughter's biological father sign over his parental rights. I had tried for 2 years to get him involved in her life. He wouldn't have anything to do with her. She is almost 5 years old now. I want to have his parental rights taken and my fiancé would like to adopt her. He says he would never sing over his rights but yet doesn't want anything to do with her. Is there anything we can do?