This is a document through which the parties agree that particular property will be "separate property" and will not be divided. A marital property partition is an agreement between spouses that allows them to convert community property into the separate property of one spouse.Discover everything you need to know about Texas separate property agreement forms in this engaging and comprehensive blog. A partition agreement divides, or partitions, a married couple's community estate into two separate estates. A joint owner or a claimant of real property or an interest in real property may bring an action to partition the property or interest in a district court.