At DebnamRust PC in Dallas, our family law team can assist you in creating a post-nuptial or pre-nuptial agreement that meets your needs. A partition and exchange partition is an agreement between spouses that allows them to convert community property into the separate property of one spouse.For legal help in Texas, call the Law Offices of David Kohm, your trusted legal separation Agreement attorney. We are here to help you with your law needs. A conversion agreement allows spouses to transfer ownership of their separate property to their spouse in a marriage.