We will explore the various options for modifying your Minnesota divorce decree and provide tangible tips to help you navigate the process. This motion is only available after a trial.This motion also must be filed within 30 days of entry of the judgment and decree. Under Minnesota law, a divorce is called a "Dissolution of Marriage. " Getting divorced is a lot more complicated than getting married. Filing Your Modification. Complete the petition for modification and file it with the court, along with the filing fee. To learn more about how we can help you with your post-decree modification and enforcement needs, call us toll free at (651) 714-2378. Without a lawyer, it can be very difficult to convince the court to rule in your favor. There are Self-Help Centers that can answer questions about how to fill out these forms or answer questions about the divorce process.