1. We are in a relationship of mutual support, caring and commitment. 2. We share the common necessities of life.The parties must be at least 18 years of age. I affirm that the information provided above is true and complete to the best of my knowledge. Signature of Certificateholder. The registration process is simple. There is usually an application to fill out which you can get from your city or county clerk's office. The affidavit requires essential information, including both partners' full names, addresses, birthdates, and the relationship's start date. Fill out the affidavit and claim form. We are not married or in any other domestic partnership.