We have provided free online forms for partition actions that should only be used in conjunction with a partition attorney in California. First Step of Partition: Filing a Complaint​​ The first step to a partition action is to petition the court for a partition of the property.The document is a partition agreement between two parties to terminate their community ownership of a parcel of land and divide it between them. The right to partition is subject to waiver. 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. Find Your Court Forms. Below is a form complaint for partition in California that is intended to be used in consultation with a real estate attorney. Official Forms for Viewing and Downloading.