Custody or Visitation Packet Forms and Instructions, pdf document. These forms and instructions are available in the General Clerk's Office, Room 108, in the Nassau County.You should file the custody petition in the Bronx. Contact the clerk's office or Family Legal Care's Helpline at 1-800-696-8629 to learn more. Intheblanks form required for any matter originating and electronically filed in Supreme or Surrogate's Courts in Richmond County. Our attorneys can help you file a motion with the court seeking to persuade the court that modifying custody is the best thing for your child. These are documents and forms relating to the areas in which they are located. Most documents and forms on this website are in Adobe Acrobat (. In COVID times you will file the document via the Electronic Document Delivery System (EDDS) filing system. Fill out the form carefully and submit it when you are filing your petition.