A partition action enables you to force the sale of property when coowners are refusing to sell. When two or more people own the same property, one of the owners CAN force a sale of the jointly owned property via a partition action or lawsuit.A partition action in the State of Washington is a type of real estate lawsuit filed in the Superior Court of the county where the disputed property is located. An attorney would draft a complaint for partition and file it with clerk of the civil court clerk in the county where the property is situated. Complete ChapterHTML PDF. Chapter 7.52 RCW. PARTITION. Sections. A Washington purchase agreement documents the sale of a piece of real property for a specified financial figure. Are There Methods To Resolve A Partition Situation Without A Court-ordered Sale?