This is a document through which the parties agree that particular property will be "separate property" and will not be divided. A partition action enables you to force the sale of property when coowners are refusing to sell.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 action is brought when there is more than one owner of a property and the owners cannot agree with respect to the disposition of the property. Addressed in a partition and exchange agreement. Note: The same distinction can be made between actual medical expenses and future medical expenses.