My son was born 11 years ago before my exwife and I got married. He got her last name. We got divorced a year ago and I got custody of him. I want to change his last name to mine. I have talked to him about it and he is OK with having it changed to my last name. She is about to get married again and I was wondering do I have to have my ex wife's permission to change his last name to mine or is it something I can just go down to the court house in Marion County Florida and do?
Thanks