Contact the Florida Bar and fill out their formal complaint form. Go to www.flabar.org for more information. Lawyers who close up shop without notifying their clients usually end up getting suspended or disbarred.
THESE COMMENTS ARE NOT LEGAL ADVICE. They are provided for informational purposes only. Actual legal advice can only be provided after consultation by an attorney licensed in your jurisdiction. Answering this question does not create an attorney-client relationship or otherwise require further consultation.