A marital property partition is an agreement between spouses that allows them to convert community property into the separate property of one spouse. Details about spouses partitioning or exchanging community property between themselves are in the Texas Family Code section 4.102.Under the Texas Family Code, at any point in time, the spouses may exchange or partition their community property however they want. They cannot be used to transfer community property to third parties. Edit, sign, and share texas partition and exchange agreement form online. Partition or Exchange of Community Property.