Establish emotional and financial security before you move in together and combine your assets with a Cohabitation Agreement. Download a cohabitation agreement template to describe how you and a nonmarried partner will divide obligations while you live together.The first step in writing a cohabitation agreement is filling in the parties' information. A Cohabitation Agreement may be unnecessary for unmarried cohabitants who have only lived together for a short time and have little property. North Carolina, not recognized. Cohabitation; holding out; and reputation. Establishing that an ex-spouse is cohabiting with someone requires evidence. An Affidavit of Cohabitation is used if a couple wants to prove that they are living together as spouses for a certain period. Can be used to avoid court imposed support payments or the division of property. Can be created prior to or after moving in together.