You cannot have a case expunged until the case has been totally resolved. And then, it would depend on whether you were eligible for the expungement
. You can see a good overview of the Florida expungement law here, and the state does not expunge convictions. (see link)
For a first arrest shoplifting you are probably going to be able to get a deferral or diversion type of sentence
if you want one. These are special forms of probation whereby you pay fines, do some community service, take anti-theft
classes and stay out of trouble and compliant with the terms of your supervision. Do everything right and the case will be dismissed at the end of your supervisory period.
So you should plead not guilty at your arraignment and work out a deal with the prosecutor to get diversion or deferral on your case. You can even try to talk to the DA assigned to your case before the court date to see if he will work this out with you. Once you get the deal you want, then you can plead guilty to take the deal.
Our law says that ALL defendants start off as innocent until proved guilty beyond a reasonable doubt. That gives you the right to plead not guilty and work out something good for yourself and you would not be lying to the court. All defendants start off by pleading Not Guilty, because it is the only plea that keeps their rights open.
Even though you can't get a public defender for the case, you can still call or stop by the public defender's office to get "how-to" type help for them. They will know your particular j.udge and be familiar with the court procedure, so it's a good idea to give that a try before calling the DA.