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Bio
Mark J. Jahnke is a distinguished attorney practicing at Katz Teller, serving clients in Columbus, Ohio and beyond. With over 24 years of experience in the legal field, Mark has established a reputation for excellence, particularly in the area of Law. Throughout a career defined by dedication and strategic advocacy, Mark has advised a diverse clientele, ranging from individuals to large corporations, helping them navigate complex legal landscapes. At Katz Teller, the focus is always on achieving the best possible outcomes through rigorous preparation and a deep understanding of the law. Mark J. Jahnke's commitment to high ethical standards and professional ability has been recognized by peers and the legal community. Notable accolades include: These distinctions highlight Mark's standing as a leading figure in Law. Mark J. Jahnke specializes in Law, bringing a wealth of knowledge to every case. Whether in the courtroom or at the negotiating table, clients benefit from a practical, results-oriented approach. Key competencies include strategic counseling, risk assessment, and comprehensive litigation support tailored to the unique needs of each client. Mark J. Jahnke's legal foundation was built at The Ohio State University, B.A., graduated 1976. This rigorous academic training provided the bedrock for a career marked by continuous learning and adaptation to the evolving legal environment. Combined with decades of hands-on experience, this background ensures that clients receive counsel that is both legally sound and commercially viable. In an increasingly complex world, having a trusted legal advisor is essential. Mark J. Jahnke at Katz Teller offers the experience, integrity, and skill required to handle the most challenging legal matters. Clients can proceed with confidence, knowing they are represented by one of Columbus's most capable attorneys.Overview
Recognition and Achievements
Areas of Expertise
Education and Background
Conclusion
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.