What parents and witnesses need to know about character reference letters to the court for child custody. Includes a downloadable sample and template.Everything you need to write a declaration letter to the judge in your custody case: an example, a downloadable template, an outline and tips. If there is a Children's Lawyer or Child Advocates office, ask them to investigate. Ask them to present an opinion on which parent is best. A complete list of forms can be found at the bottom of this page. Please read the instructions below to ensure that you select the correct form. State exactly what you want from the court here. Don't make demands though. Petition For Modification Of Order Of Custody Visitation.