You will then file it and serve it on your ex.. "Pet custody" isn't officially a "thing" in Michigan divorce courts.Need to sort out custody for your pet after a breakup, divorce, or roommate split? Utilize our Pet Custody Agreement to establish clear ownership and responsibility for a pet following the conclusion of a relationship. Build your custom pet custody agreement instantly at 360 Legal forms. Create, print, and share customized for free. An experienced Michigan divorce lawyer will help you figure out the most fair and amicable pet custody in your divorce. According to Michigan state law, pets are regarded as personal property, meaning they are subject to asset distribution. It is important to write out a comprehensive plan when spouses want to share a pet in this manner. If you and your spouse both claim ownership of the pet, then that is where things become tricky.