How to fill out forms to start a custody and support case. Get the court address in the county where the child lives.Commonly used forms in Family Law proceedings including petitions for different types of restraining orders, child custody and support cases, and parentage These forms and instructions are available in the General Clerk's Office, Room 108, in the Nassau County. This 2001 Appeal is interesting because it incorporates how the court responds to evidence of injuring a child on visitation and severe violence.