Qualified Medical Child Support Order. The form is a motion requesting a modification to child support obligations based upon a change in circumstance, i.e.This document is a sample form letter designed for individuals seeking a downward modification of their child support obligations. It is not so hard if you go fill out paperwork from the court. Download a free child support modification form to propose changes to a current child support agreement. Available in PDF or Word format. Here's what to expect when you request for a modification of your child support order. Click here to learn the steps in the modification journey. To file such a motion, you generally need to explain the change in circumstances that have taken place which warrant changing the current support order. Download a free child support modification form to propose changes to a current child support agreement.