This affidavit documents the cohabitation of two individuals for over ten years without being legally married. The purpose of this affidavit is to attest to the truth of their unmarried cohabitation for legal purposes.An Affidavit of Cohabitation is used if a couple wants to prove that they are living together as spouses for a certain period. We are executing this affidavit to attest to the foregoing facts and for the purposes of contracting marriage without the need of securing the marriage license. Sample Document republic of the philippines) city of pagadian affidavit of cohabitation we, zaiton sumpo and jethro hermosilla, both of legal age, filipino, Based on the evidence in the record, plaintiff's relationship with MP did not constitute "cohabitation" as this term has been construed. (2) Supplemental claim. Long as they execute an affidavit of cohabitation. She will fill out her part of the application when she is in front of the registrar. Mesquita exhibits an.