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.Petitioning to partition is a legal right and the process starts with filing a petition with the Clerk of Court. Petition rules vary from state to state. A partition agreement divides, or partitions, a married couple's community estate into two separate estates. Houston, TX 77210-4651. Partition is the legal term referring to division of real property interests among co-owners (tenants in common). FCC Form 603 is a multi-purpose form. It is used to request approval for an Assignment of Authorization (Assignment) or. Texas Family Code Section 4.102 allows for spouses to partition or exchange between themselves all or part of their community property.