Although you do not need an attorney to bring a small claims action it is prudent to use an experienced landlord-tenant attorney if you can get such representation on a contingency basis. The attorney has a much better chance of winning the case and the Florida Landlord Tenant Act provides for attorney's fees. I practice in the Orlando area and am willing to provide a free consultation. firstname.lastname@example.org
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Sounds like a job for Judge Judy!
I don't know Florida landlord tenant law, but I'd be surprised if the landlord gets to keep your deposit on the facts described... get yourself a good landlord/tenant lawyer and see if there aren't additional damages for wrongful withholding of a security deposit...
File suit against your landlord in small claims court for the return of your deposit. You can get the forms from the clerk of the County Court in your county. You do not need a lawyer to file this suit.
Disclaimer: This answer is provided for informational purposes only, does not constitute legal advice, and does not create an attorney-client relationship. Actual legal advice can only be provided after completing a comprehensive consultation in which all of the relevant facts are discussed and reviewed.