This legal document serves as proof of the couple's cohabitation, primarily in the context of legalizing their union or asserting certain legal rights. Instead you will submit the AOC as one of the required documents to get married.The marriage between Filipinos or between a Filipino and a foreign national should be reported and registered with the Philippine Statistics Authority (PSA) You must prove that cohabitation has taken place before the court will end your alimony payments. A spouse of a US citizen must submit with the naturalization application an official civil record to establish that the marriage is legal and valid. Once you have filled in the other sections, both parties should sign the agreement so it becomes a legally binding contract. Cohabitation occurs when someone starts living with a new partner in a relationship that takes on the characteristics of a marriage. Unformatted text preview:securing the marriage license pursuant to the provisions of Article 34 of the Family Code of the Philippines. An Affidavit of Cohabitation must include the full legal name, age, citizenship, and residence address of each affiant. A lady fills out the petition.