Qualified Medical Child Support Order. The name and address of the other parent.1. Fill out a child support modification petition. 2. File the petition with the Family Court that most recently established your order. 3. Write your Case Number in the upper right corner of every page. 3. If you are asking for child support or a change to your child support order, fill out the Summary Form for Financial Information. Insert the case number from your custody order on the top right side of the form. Answer all the questions on the form completely. 4. The forms listed below may be used for filing in the Wayne County Court of Common Pleas. The Court strongly recommends that persons obtain legal counsel.