I am sorry to be the guy to have to bear bad news.
While Florida Law allows for sealing and expungement of criminal records (they are different...sealing hides it from most of the public view where expungement actually erases the record) they have very specific rules that apply.
However, you may not be eligible. Florida will only allow you to seal your record if it is your first and only sealed offense AND it didn't result in a conviction or was an adjudication withheld.
You can see the statute that applies hereHere is the link
What you see is that if you have an arrest that does not result in a conviction AND that you have no prior criminal convictions, then you can get the records from the arrest sealed.
But since you were convicted of a misdemeanor offense? You will not be eligible to have the records from the arrest of the dismissed charges sealed.
The only way around this requirement would be if you could remove that criminal conviction. To do that at this point you would need to obtain a pardon from the governor of the state of florida.
If you can obtain a pardon, then you can apply to the state for sealing the records from the arrest.
Pardons are not easy to obtain, but if you want to pursue, you can start that process with this applicationHere is the link
BotXXXXX XXXXXne: that conviction is going to prevent you from sealing the records of arrest.
Again, sorry to have to bear bad news.
Let me know if you have more questions...happy to assist if I can