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Bio
As a legal attorney in Ohio, Mark J. Jahnke is committed to client advocacy. J. Jahnke brings over two decades of dedicated practice to each legal case. J. Jahnke is affiliated with Katz Teller, where the focus is on client-centered service. Mark J. Jahnke combines legal skill with genuine concern for client outcomes. Admitted in Ohio, J. Jahnke remains committed to serving clients with distinction.
Awards & Recognition
- Lawyer of the Year: Mergers and Acquisitions Law, Cincinnati (2025)
- Lawyer of the Year: Corporate Law, Cincinnati (2021)
- Lawyer of the Year: Corporate Law, Cincinnati (2017)
- Lawyer of the Year: Mergers and Acquisitions Law, Cincinnati (2015)
- Lawyer of the Year: Corporate Law, Cincinnati (2014)
- Lawyer of the Year: Corporate Law, Cincinnati (2012)
- Lawyer of the Year: Mergers and Acquisitions Law, Cincinnati (2012)
- Recognized: Corporate Law
- Recognized: Mergers and Acquisitions Law
- Special Focus: Closely-Held Businesses
- Special Focus: Family Businesses
- Special Focus: General Corporate
- Special Focus: Health Care
- Special Focus: Leveraged Buyouts
- Special Focus: Mergers & Acquisitions
- Special Focus: Private Equity
- Woodward/White’s Best Lawyers in America® “Lawyer of the Year”, Cincinnati, Corporate Law, 2012, 2014 & 2017
- Chambers USA – America’s Leading Lawyers for Business for Corporate/Mergers and Acquisitions (Tier 1 - Top 5 Lawyers in Ohio)
- Law & Politics Media, Inc. as an Ohio Super Lawyer® and as one of the “Top 50 Lawyers in Cincinnati” and one of the “Top 100 Lawyers in Ohio”
- Neil H. McElroy Leadership Award from the United Way of Greater Cincinnati in 2008 for leadership in resource development
- 2012 Core Values Award for Responsibility from The First Tee Chapter of Cincinnati
- 2007 Deal Maker of the Year (Service Provider Award) by the Association for Corporate Growth
- Woodward/White’s Best Lawyers in America® "Lawyer of the Year", Cincinnati, Mergers and Acquisitions Law, 2012 & 2015
- Best Lawyers in America® for Corporate Law and Mergers & Acquisitions every year since 1999
Recognized in Best Lawyers since 2001
Education
- The Ohio State University, B.A., graduated 1976
- The Ohio State University, M.A. (Joint Conferral), graduated 1976
- Northwestern University, J.D., graduated 1979
- The Ohio State University, BA, graduated 1976
- The Ohio State University, MA, graduated 1976
Reviews
Donna Robinson
Expert guidance through a complex business acquisition
Mark Jahnke of Katz Teller provided exceptional counsel during our recent acquisition of a local competitor. His 24 years of general practice experience, particularly in corporate matters, were immediately evident. He expertly navigated the due diligence and contract negotiations, anticipating issues we hadn't considered. His recognition as a 'Lawyer of the Year' in Corporate Law is clearly well-deserved. While his billing is commensurate with his high level of expertise, and communication could occasionally lag by a day during very busy periods, the strategic value he delivered was outstanding. We felt thoroughly represented and protected, and I would confidently recommend him for any significant business transaction in Ohio.