Please allow 2-3 weeks to purchase Certificates after the time of event. An application, sworn statement, Identification, and fee are required.Completing and signing Form I-864 makes you the sponsor. Your computer must have the Adobe Acrobat Reader installed in order to view any of these documents. Use the following links to access an application with Sworn Statement for an authorized copy of a birth, death, or marriage certificate. The applicant is a native and citizen of Mexico who has resided in the United States since January. 2007, when he entered the United States without inspection. To start the declaration, the person should state their complete name and address, as well as their country of citizenship. Affidavits and Sworn Statements: Professional Certifications and Records: In Puerto Rico all deeds and sworn documents must be notarized. Whether you're requesting online or in person, make sure you have at least one valid ID ready.