Skip to Main Content
David L. McClenahan
Mr. McClenahan is a long-time trial lawyer whose practice is now focused on the mediation and arbitration of commercial disputes. He has litigated cases arising out of the antitrust laws, federal securities laws, health care issues, class actions, RICO, ERISA, Uniform Commercial Code, shareholders’ litigation, environmental matters, employment discrimination, restrictive covenants, breach of fiduciary duties, construction, trademark, products liability, real estate, and general business disputes. His mediation/arbitration practice has included cases with the same or similar commercial issues.
  • K&L Gates, 1971- date; Partner 1977-2013; Of Counsel 2013-date
  • Harvard Law School Negotiations Institute, Graduate Program on Mediating Disputes, 2013
  • Adjunct Professor, University of Pittsburgh School of Law, Health Care Antitrust, 2012-2014
  • Adjunct Professor, Duquesne University School of Law, Fundamentals of Pretrial Litigation, 1995-2000
  • Law Clerk for Honorable John L. Miller, U.S. District Court for the Western District of Pennsylvania, 1970-1971
  • Captain, U.S. Army, 1968-1970
  • Law Clerk, Court of Common Pleas of Allegheny County, Pennsylvania, 1967-1968

Professional Recognition

  • Selected as Lawyer of the Year, 2014, for the Bet-the-Company Litigation in The Best Lawyers in America
  • Fellow, American College of Trial Lawyers
  • Selected in Chambers USA, The Client’s Guide, as one of three leading commercial litigators in Pittsburgh, and one of 25 in Commonwealth of Pennsylvania
  • Best Lawyers in America, Antitrust Law, Bet-the-Company Litigation, Commercial Litigation, Health Care Law, 1993-2020 
  • Selected as a Pennsylvania Super Lawyer in Business Litigation and as one of the top 50 lawyers in Pittsburgh by Philadelphia Magazine
  • Member, Academy of Trial Lawyers of Allegheny County

Mr. McClenahan has been a member of the American, Pennsylvania and Allegheny County Bar Associations and has been active in various committees thereof relating to litigation, health care, and judicial selection issues.

Current and Past Community Service Activities

  • West Penn Allegheny Health System, Board of Directors, including as chairman from 2002-2011
  • Allegheny General Hospital, Board of Directors
  • The Western Pennsylvania Hospital, Board of Directors
  • Pittsburgh Regional Healthcare Initiative, Treasurer, Board of Directors
  • Association for Retarded Citizens, Allegheny County Chapter, Past President, Board of Directors
  • D. T. Watson Rehabilitation Hospital, Member of Board of Directors, Member of Executive Committee
  • Duquesne Law Alumni Association, Past President, Board of Directors
  • The Winchester-Thurston School, Board of Trustees
  • The Pittsburgh Theological Seminary, Board of Directors
Mr. McClenahan is a frequent lecturer and panelist at seminars relating to litigation process and on the legal aspects of health care. A separate listing of these presentations is available.
Return to top of page

Email Disclaimer

We welcome your email, but please understand that if you are not already a client of K&L Gates LLP, we cannot represent you until we confirm that doing so would not create a conflict of interest and is otherwise consistent with the policies of our firm. Accordingly, please do not include any confidential information until we verify that the firm is in a position to represent you and our engagement is confirmed in a letter. Prior to that time, there is no assurance that information you send us will be maintained as confidential. Thank you for your consideration.

Accept Cancel