Your question is unclear to me. I'm not sure why you need someone from Missouri. If the negligence occurred in Florida you need to file your claim in Florida and you need an attorney who handles medical negligence cases who is licensed in Florida not Missouri. If you received treatment for your condition in Missouri that really does not matter if your claim arose from treatment you received in Florida.
If you feel this is the "best" answer or is "helpful," please indicate. Since I am limited to the information you provide, I cannot guarantee the accuracy of the answer. You should seek the advise of an attorney who can explore all aspects of your question. This communication does not form an attorney client relationship.
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