Real Estate Partition Definition in California. A partition action is a court-ordered equitable division of property.We have provided free online forms for partition actions that should only be used in conjunction with a partition attorney in California. A partition action enables you to force the sale of property when coowners are refusing to sell. In a partition lawsuit, there are generally four different steps. First, the court determines each party's ownership interests. I am in need for sample partition agreement document which I can use as a template, I appreciate your assistance. Solving Joint Ownership Problems in Riverside. 1- Hire an experienced real estate attorney. The "Recorder Sample Documents" below is a partial list of commonly used recording forms and a description of each.