I am trying to find out what are the proper procedures in getting my five-year-old's name changed to my husband's last name. Though his biological father is ordered to pay child support, he does not... And my son doesn't have his biological father's last name nor has biological father ever signed his birth certificate, so my son doesn't even have a father listed on his birth certificate. He refers to my husband as his "Daddy" and he and his biological are on a first name basis. We live over five hours away from from his biological father and he only has contact with his biological's side of the family when he goes to visit my parents. Though his biological father doesn't want anything to do with him, his biological paternal grandparents do... What would be the best solution to this? Is it possible for me just to do a name change on his birth certificate and change nothing else? BTW, all of this is occuring in the state of Illinois.