Contact a Suffolk County divorce lawyer for help in modifying your child support payments to reflect your current financial abilities and standing. How do I file a petition in the Family Court (or modification, order of protection, motion, etc)?.You would file the motion for modification with the court, and provide notice to the other party. The name and address of the other parent. Our Suffolk County divorce modification lawyers can help you prepare and file a petition with the court for a modification to your divorce settlement. Adjust your child support payments with the help of a Suffolk divorce lawyer. Contact Lynn Poster-Zimmerman, PC for more information! When Do You Need A Modification? The most common method is initiating a petition or a motion for a child support modification. You cannot simply move yourself and your children without notifying anyone, especially when you need to change the divorce agreement first.