I know that in UT we're supposed to, although they just passed whats called a 'cottage kitchen' law that allows you to follow specific laws and produce in your kitchen. It may help if you put 'FL kitchen laws' in your topic, though, catching they eye of fellow floridians. Good luck!
I just moved to the Tampa area from Michigan, and was bummed to find out that you can't be licensed for a home bakery. I am pretty sure that at best you would have to have a seperate kitchen, and I'm not sure that they would even license that. There is a thread on here with a list of states and their websites so that you can check into it further-but I'm not sure how to post the link 
Hopefully someone can help you better-sorry
Here's the link you guys were looking for, it's in the Cake Decorating Business forums
http://www.cakecentral.com/cake-decorating-ftopict-586218.html
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