A partition action must be filed in the county where the property is located. This article will explore the basics of partition lawsuits in Michigan, highlighting key statutes and court rules to help you better understand the process.A partition action is a lawsuit that forces the court to take over the process of dividing or selling a joint property. A complete application for a proposed division shall be approved if, in addition to the requirements of section 108, all of the following requirements are met:. Partitioning real property in Michigan can be a complex legal process, often necessary when coowners disagree on the use or sale of the property. Partition action in Michigan is a legal action to split a property among disputing owners fairly.