Your Filing Options. File online with a credit card.Complete this application if you wish to be licensed as a Management Company. 2601 Blair Stone Road, Tallahassee FL 32399 Register their "fictitious name" or "dba" name with the Florida Department of State prior to conducting business in Florida. If you want to register the name as a business entity such as an LLC or a Corporation, fill box (2) and leave the box (1) blank. Florida law specifies that your LLC's name needs to be unique in several ways, so you can't just use any name you want and add "LLC" to the end of it. Conducting a Florida LLC name search is easy. In this guide, we'll give you the steps you need to do a Florida business name search. Here are twelve points to consider when selecting or changing your business name. 1.