You really need to ask this question under the New York section of AVVO so that a New York lawyer can advise you. Good luck to you.
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Florida law allows you to seal or expunge one criminal case. In order to qualify you cannot have another conviction on a criminal offense. An expungement is permitted when the case has been dismissed. Sealing of your record occurs if you received a with holding of adjudication.
Since your offense occurred in NY, I agree with the other attorneys that you should contact an attorney in NY.