James B. Rosenthal, Partner

Direct: (216) 815-9400

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Key Practice Areas:
Contract Law 
Corporate Disputes
Family Business Disputes
Fiduciary Duty 
Insurance Coverage 
Securities Law


Jim Rosenthal is an experienced and effective commercial litigator and a SuperLawyer®. He has developed a reputation for creative analysis, independent judgment and strategic thinking. He is known for decisive and energetic written and oral advocacy from the conference room to the courtroom. Jim has won significant victories for clients in federal and state courts and in binding arbitration. He has handled cases for investors, shareholders, entrepreneurs, athletes, physicians and other professionals, financial institutions and other businesses in disputes where the outcome is measured in dollars, but the stakes just as often involve a career, a reputation, a critical business relationship, or an individual or entity’s future. 

Jim has served as the managing partner of Cohen Rosenthal & Kramer LLP since its inception. He has maintained sound fiscal management and has overseen the development of a lean, flexible but powerful infrastructure, all in the service of creating a stable foundation on which to serve clients and to support his colleagues in reaching the limits of their professional potential. 

Jim has also held significant leadership positions in the community. He is humbled to have served as a mentor to new lawyers through the Ohio Supreme Court mentoring program since that program debuted. He is also a Master Bencher and serves on the Program Committee of the John M. Manos Inn of Court. A passionate proponent of the arts, he has served as president and is currently chair of the board of Apollo’s Fire, a Baroque orchestra based in Cleveland. As a volunteer, Jim helped Apollo’s Fire secure its position as a world-leader in its field. His tenure as president saw the Board grow in number, in stature, and in financial support, and he guided the organization as it fortified its development and management functions in order to meet the level of artistic excellence already achieved by that organization. 

Prior to founding Cohen Rosenthal & Kramer, Jim worked at two top-100 law firms: Arent Fox in Washington D.C. and Squire Sanders in Cleveland.