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.A partition agreement divides, or partitions, a married couple's community estate into two separate estates. The Treaty of Guadalupe Hidalgo officially ended the Mexican–American War (1846–1848). It was signed on 2 February 1848 in the town of Guadalupe Hidalgo.