A partition action is a lawsuit between co-owners of real property who cant agree as to any aspect of the management of the property. It is used when a co-owner no longer wants to own the real property, but there isn't an agreement among the owners regarding how to dispose of the property.Learn everything about filing a property partition case in Florida. Get step-by-step guidance on the process, from determining ownership to going to court. Partition is a legal process that is used when property owners can't reach an agreement on whether and how to sell their property. A partition action occurs when you and or one or more parties own a property together and can not agree on whether or not to keep it or on who keeps it.