The Federal Deposit Insurance Corp. is suing the Akerman Senterfitt law firm and the Miami chair of its banking practice, alleging negligence by the firm over its handling of a real estate loan caused the failed Peninsula Bank to lose $4.6 million.

The lawsuit, filed June 14 in U.S. District Court in Tampa, names as defendants Akerman; Miami partner William C. Arnhols, who chairs the firm's banking, lending and structured finance practice; and Drake Batchelder, former managing partner of the firm's Fort Lauderdale office.