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.This is a document through which the parties agree that particular property will be "separate property" and will not be divided. Super Lawyers Rated Partition Attorneys in Alameda County. Ending Co-Ownership Disputes in Alameda County. A partition action enables you to force the sale of property when coowners are refusing to sell.