Louis A. DePaul



Lou DePaul concentrates his practice on business litigation. His practice and experience covers a broad range of business litigation, including complex commercial litigation, class action litigation, products liability litigation, real estate litigation, intellectual property litigation, bankruptcy litigation, and employment disputes. Lou has litigated cases in state, federal, bankruptcy, and appellate courts in multiple jurisdictions and his experience extends to commercial arbitrations and mediation.

Representative Matters

  • Successfully defended a Fortune 500 company from claims for breach of contract in excess of $20 million; after three years of litigation, international corporate plaintiff dismissed the case with prejudice on the eve of trial.
  • Was an integral part of a trial team that obtained an award in excess of $9 million after four weeks of hearings in a complex commercial arbitration on behalf of investors attempting to develop an emerging energy technology.
  • Regularly represents energy companies in cases involving alleged violations of the Telephone Consumer Protection Act.
  • Has extensive experience defending officers, directors and corporations in shareholder derivative actions.
  • Currently acts as national counsel for products liability and commercial litigation matters for a leading manufacturer of freight rail and passenger transit products.
  • Successfully defended an international seafood manufacturer in a nationwide class action concerning claims of alleged mislabeling (case was settled on favorable terms).
  • Regularly represents one of the nation’s largest residential builders in matters involving land use, development, zoning, and commercial litigation.
  • Successfully defended various online hotel booking agencies in statewide class action concerning the payment of hotel occupancy taxes.

Professional Affiliations

  • Fellow, Allegheny County Bar Foundation
  • Allegheny County Bar Association

Community Involvement

  • From 2005 to the present, Lou has served as a mentor and teaching assistant for Carnegie Mellon University’s Tepper School of Business Senior Management Game Class
  • Pittsburgh Vintage Grand Prix Association, Secretary, Board of Directors
  • Moot Court Judge, Carnegie Mellon Moot Court Competition

Awards and Recognition:

  • Named a Rising Star by Pennsylvania Super Lawyers Magazine from 2010 – 2018
  • Member of the firm’s Associates Committee from 2015 to the present

News and Insights


  • “INSIGHT: Third Circuit Continues to Rein in Runaway TCPA Claims,” co-author, Bloomberg Law, July 3, 2018.
  • “Beware: Inspecting Goods May Waive Implied Warranty Protections,” co-authored for LJN’s Equipment Leasing Newsletter, May 2017.
  • “Examining Pennsylvania’s doctrine of unconscionability,” co-authored for PA Business Quarterly, January 2017.
  • “Pa. Courts Address ‘Unconscionability’ in Business Contracts,” co-authored for The Legal Intelligencer, July 2016.

Legal Updates

Media Coverage

Speaking Engagements

  • The Pennsylvania Dead Man’s Rule” co-presented to the Pennsylvania Conference of State Trial Judges at their Mid-Annual Meeting, February 2019. 
  • “Autonomous Vehicles: Legal Issues to Consider,” co-presenter, Eckert Seamans’ Continuing Legal Education Seminar, August 2018.