Instructions on how to fill out the forms and register them are on the Hillsborough County Clerk's website. The Marriage License Department is here to answer your questions concerning obtaining a marriage license in Hillsborough County.From here you can find out how to access birth records, or request an official document, like a death certificate or a marriage license. Financial Affidavits are required in all Dissolution of Marriage cases. Additional resources include a directory of local self-help centers. For Hillsborough County: Fill out the marriage license application online. Is to tell y'all that the law is an absentee epidemic. A Florida Marriage License can be obtained from any county courthouse in the State of Florida. If you have a Social Security number, it will be requested to complete the form. You won't have to bring the actual card.