Well-known litigator and former South Florida U.S. Attorney Marcos Jimenez has left McDermott, Will & Emery to strike out on his own.

Jimenez’s current high-profile cases include his representation of ex-Panamanian president Ricardo Martinelli in his fight to avoid extradition to Panama. He is also representing former Florida Rep. Erik Fresen, who is accused of failing to file tax returns. Jimenez said he left McDermott in May, formed his own practice and has been sharing office space and collaborating with lawyers at the Miami firm Leon Cosgrove.