To change or modify a court order, a party must file a petition with the court requesting the change. This petition will include the reasons you have for seeking an adjustment to your divorce agreement or order, along with evidence that backs up your position.To obtain a divorce in Virginia, either you or your spouse must be a resident of Virginia for at least six months prior to filing for divorce. At Wexell Milman, we help our clients obtain post-divorce modifications to the terms of their custody, visitation, and support agreements. Here's when you may need to adjust your settlement agreement even after your divorce has been finalized in the state of Virginia. While the legal process for modifying your divorce agreement can be complex, an experienced modifications lawyer can help you every step of the way. File a Petition: The first step in requesting a modification is to file a petition with the court that issued the original order. Modifications refer to changes made to already-existing divorce agreements or decrees that reflect new circumstances or needs. Alimony Modification. The Fairfax divorce attorneys at Law Office of Afsana Chowdhury, PLC have years of experience helping families in Virginia.