Petition For Enforcement Of Order Of Custody Visitation. These are the official forms for use in Family Court proceedings.Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. In this video we'll cover three terms to always include in the plan the steps to file for custody in New York and how to modify a custody agreement. These guides will help you write forms or letters to solve legal problems in New York State. Some are forms for a court or government agency. Complete General Form 17 to petition for custody or visitation. Be specific about what you are requesting for custody and other support. This article provides a comprehensive guide to writing a declaration letter for child custody cases, including a sample letter. Edit, sign, and share petition for custody ny fillable form online.