A man in a dark suit and light blue tie is smiling, standing in a well-lit corporate law office hallway with neutral-colored walls.

Patrick J. McMahon

Senior Counsel

Patrick J. McMahon

Senior Counsel

Patrick McMahon is a senior counsel and litigation attorney with Foley & Lardner LLP. Patrick focuses his practice on labor and employment matters and has significant experience in general commercial litigation. In Patrick’s labor and employment practice, he has successfully defended employers in a number of forums, including federal and state courts, and federal, state, and local agency proceedings. As part of his employment practice, Patrick has a unique concentration in the cannabis space. Cannabis laws vary significantly across jurisdictions, and Patrick counsels employers on the employer and employee rights as it relates to cannabis use in and out of the workplace. Patrick also provides consistent employment counseling to clients in various areas including disability accommodations under Titles I and III of the Americans with Disabilities Act, website and technology accessibility for people with disabilities, public accommodations, sexual harassment and safe workplace compliance, family and medical leave issues, wage and hour compliance, and other state and federal employment laws. In addition, Patrick’s deep experiences in defending clients against the Illinois Biometric Information Protection Act (BIPA) claims has successfully resolved dozens of cases in both state and federal court, in addition to writing several articles on BIPA’s latest developments.

Patrick also works with clients and attorneys in the Foley’s Government Enforcement Defense & Investigations Practice to respond to government investigations, conduct internal investigations, and litigate disputes. Patrick has successfully defended clients, and particularly health care providers, in multiple False Claims Act and whistleblower matters.

Prior to practicing law, Patrick served as a cyber and communications officer in the United States Air Force from 2006 – 2012 at various national and international locations overseeing 20-plus airmen in roles that included leading a team to engineer, install, and test a new AOC Weapon Systems; orchestrating a 12-week upgrade with 10 agencies to relocate a $40 million European Air Operation Center; serving as aide de camp to an Air Force Major General in day-to-day events and devising long-term strategies; and directing support for air traffic control systems, weather radar, telephone, wireless, classified/unclassified data networks, and information management for over 6,000 customers.

Patrick currently serves as the co-chair of the firm’s Veterans & Allies Affinity Group and is a member of the firm’s national Associates Committee.

Awards and Recognition

  • Best Lawyers: Ones to Watch – Commercial Litigation; Labor and Employment Law – Management (2024-2026)

Affiliations

  • Member, American Bar Association

Publications and Presentations

  • Co-author, “How Employers Can Navigate NLRB’s Pro-Employee Shift,” Law360 (October 18, 2023)
  • Author, “What Past Practice?? NLRB Overhauls Back Pay Formula,” National Law Review (September 6, 2016)
  • Author, Note, Akamai Techs., Inc. v. Limelight Networks, Inc., 24 DePaul J. Art Tech. & intell. Prop. L. 235 (2014)
November 7, 2025 The Path & The Practice

Special Episode: Patrick McMahon, Alexa Goldstein, and Rashad Abdallah talk life in Big Law as military veterans

This special edition of The Path & The Practice welcomes members of Foley’s Veterans & Allies Affinity Group, Patrick McMahon (Senior Counsel, Labor & Employment, Chicago), Alexa Goldstein (Associate, Litigation, Tampa), and Rashad Abdallah (Associate, Labor & Employment, San Diego).
November 20, 2025 Events

Navigating a Shifting DEI Landscape in Venture Capital

Almost one year into the Trump administration, how are investment firms adjusting to the heightened scrutiny around DEI initiatives? Join us for a discussion on the challenges that the concept of DEI poses for investment firms.
August 26, 2025 In the News

Patrick McMahon Weighs in on Genetic Privacy Cases

Foley & Lardner LLP partner Patrick McMahon shared takeaways for employers following recent rulings under Illinois' Genetic Information Privacy Act (GIPA) in the Law360 article, "New Rulings Bolster Plaintiffs In Ill. Genetic Privacy Suits."
August 18, 2025 Labor & Employment Law Perspectives

Seventh Circuit Establishes New Standard for FLSA Conditional Collective Certification: How This May Benefit Employers

The Seventh Circuit’s recent decision in Richards v. Eli Lilly & Co. et al. (Aug. 5, 2025) marks a pivotal shift in how district courts...
August 12, 2025 Foley Career Perspectives

Foley Veterans Affinity Group Engages With Boys & Girls Clubs of America’s Military-Connected Youth

Foley & Lardner continues to build a national partnership with Boys & Girls Clubs of America (BGCA) to support its national youth...
July 7, 2025 Labor & Employment Law Perspectives

Florida Bucks Trend, Enacts New Employer-Friendly Noncompete Statute

While the recent trend across the country has been to restrict noncompete agreements, Florida has just made it easier for employers to...