You can hire a lawyer to assist you in accomplishing your sealing / expunction, but recognize that you will never truly "erase" your arrest.
Sealing is available in a case where you received a withhold of adjudication, and expunction is available in a case which was dismissed, nolle pros'd, no actioned or where you were found to have been not guilty. In Florida you can only seal or expunge one eligible (non-disqualified) offense in your lifetime.
If you look at the following website you will learn everything you ever wanted to know about the sealing / expunction process:
The procedure is both quite detailed and somewhat painstaking but is also far from being rocket science. You can attempt to navigate it yourself (FDLE has tried to simplify it - again I refer you to the website above) but, assuming your eligibility, any criminal defense lawyer (anywhere in Florida - this can be done remotely and does not necessarily require a local attorney, although a local attorney may or may not be less expensive) will be able to accomplish the task with greater ease and likely in a shorter time period.
That said I suspect that it doesn't much matter where you were arrested, what you were arrested for, what the final disposition was or whether or not you sealed / expunged the record. This is 2015 and we are forehead deep into the internet age, where nothing is private, sacred or truly hidden from public scrutiny.
Sadly, sealing (and expunging) only applies to certain (not even to all) government agencies and has no effect whatsoever on private (er, extortionist) enterprise, who compile and maintain arrest information and then demand that you pay them off to remove your information from their database and public access. Worse still, after you "buy back your information", then you can count on there being another private company lurking, somewhere, sometime, somehow, just waiting for you to pay them off as well. Its a seemingly never-ending vicious cycle.
For better or for worse you are probably best advised to take the wind out of the sails by admitting your past issues / indiscretions to your present (or potential) employer, lender, landlord, etcetera, rather than waiting for them to find out on their own.
I hope that I have been helpful in answering your question.
First, second and third: No attorney-client relationship exists by virtue of any Q&A with Michael A. Haber, Esq. on Avvo. Fourth: Anything that you post on Avvo (or on similar sites) or on any social media is by its nature public. It is essentially an admission / confession and can be introduced into evidence as a statement against your interest in a subsequent legal proceeding. Once posted you lose any reasonable expectation of privacy, so, as this is an open forum (with no privilege attached), please be extra careful when considering what to post online (forewarned is forearmed.)
Mr. Haber has provided you with an excellent answer. I think you might find it beneficial to consult with a local attorney for advice and assistance. I think you can see from Mr. Haber's answer, there are many factors involved and attempting to handle this yourself could prove confusing. Make a couple of calls to some local attorneys to explore your options.
both of the other attorneys have great advice in their answers. Mine is very simple - disclosure is best. why would you want to get involved in an employment, living or other arrangement, get comfortable, build your life around it or partly around it, only to have your arrangement suddenly ended by lack of disclosure. Private citizens are not bound by expunction and sealing - if a private citizen finds out you had a felony case they can use that in making their decision as to how they want to deal with you - there are no rules prohibiting discrimination against felons based solely on the past criminal record.