What is Partition (Partition Actions Explained)?. "Partition" is the legal term referring to the division of real property interests among co-owners.The court must order the property partitioned. Partition is sometimes referred to as a "forced sale. An undivided possessory interest in property is a tenancy in common. . . . The lien represents an owelty of partition and the necessary adjustment between the parties to carry out the purposes of the partition. Very generally, the partition of real property is the division of previously undivided interests among joint owners or cotenants1. A partition action would allow you to ask the court to force your nephew to either sell or to buy out all of your three interests. A coowner of a mobile home that is classified as personal property can pursue partition as an avenue to terminate the joint ownership and divide the property. A PARTITION means to divide an area or tract of land into two (2) or three (3) parcels in a calendar year.