I am the mother living in Georgia with an 18 year old son who is currently in the 11th grade. He has one more year of school until he graduates. I have had custody of my son all his life. He is wanting to leave home and go to leave with his biological father. His biological father has agreed to let him come stay with him but I feel he needs to stay in the home where he is now until he finishes school. So my question is do I have any legal grounds to keep him in school where he is now or because of his age is there nothing I can do?