You can file a petition for child custody in your county's Superior Court. If you are divorcing, the petition will be included in your divorce papers.To get custody or any rights to visit, the father must first prove he is the father. Petitioner is a resident of. County, Georgia, and is the ______ of the child(ren) at issue: Full Name. I believe the following custody arrangement is in the best interests of the child(ren): a) The should have full custody. Uncontested: You and the other parent agree to the Parenting. Forms and Documents. Family law cases can be complex and difficult. HERE ARE THE DETAILED INSTRUCTIONS ON HOW TO FILL OUT THE FORMS: STEP 1- Complete the Petition for Change of Custody and Child Support.