A marital property partition is an agreement between spouses that allows them to convert community property into the separate property of one spouse. This is a document through which the parties agree that particular property will be "separate property" and will not be divided.PLAN AHEAD: Dockets fill up. A partition agreement divides, or partitions, a married couple's community estate into two separate estates. This form is used for documenting property groups relating to one or several historic contexts. I. Underwriting Topics. A. How to Use This Manual. Associated fees as stated in the most recent confirmation or contract issued to the client.