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.Use this form to ask the judge to give you parental responsibilities for a child. This includes parenting time (visitation) and decision-making power (custody). In most situations, you can file for custody in the "home state" of the child. FindLaw links to state-specific family law and child custody forms for DIY legal proceedings. Learn when to hire an attorney to help with family law issues. Fill out and sign or esign your forms. Make four copies of each form. The forms are available free of charge.