Former Third District Court of Appeal Chief Judge David Gersten is among three attorneys facing sanctions in a bitter probate case that has also engulfed a fourth lawyer in a criminal investigation.

Gersten is now a partner at Gordon & Rees. He and Miami attorneys Terry Fogel and Scott Rubin, of Fogel Rubin & Fogel, represent Jorge and Alina Lopez, the adult children of multimillionaire Jose Lopez Sr., who want to annul their father’s marriage to his third wife, Mercy Flores.