Would I need a lawyer or I could do it myself. What are the chances it will be granted. If I get a lawyer what is the cost I am looking at.

I assume by the "order to expunge from FDLE" you mean an Certificate of Eligibility.  The next step is to file a Petition along with an Affidavit with the Court that originally handled the case.  You will also need to submit an Order.  Usually, the clerk offices will have forms that you can purchase for a nominal fee, however, I would suggest, to make sure it was done property, you hire a lawyer.  Additionally, since the State Attorney's Office may require a hearing, you are better off with an attorney.  Our office handles these cases frequently, to handle the case from the very beginning we charge $750, however since you already obtained a Certificate of Eligibility, the cost would be $500.00.  Also, please be aware that after you receive an Order from the court, you need to make sure all the agencies involved were notified and you need to make sure you understand the effect of the expungement.