Atty. Mark L. Keenan

Atty. Mark L. Keenan

He takes the time to learn about the businesses he advises and tailor their employee relation strategies to promote a better workforce and a better workplace. For those clients with established union relationships, Mark has worked diligently to further his clients’ labor relations strategies, including successfully partnering with their union representatives.

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Profile Summary

About Mark L. Keenan at a glance

Mark L. Keenan is a employment and litigation attorney based in Atlanta, Georgia, practicing at Barnes & Thornburg LLP. Educated at University of Illinois College of Law (J.D., 1989) and University of Illinois at Urbana–Champaign (—, 1989). Recognitions include Best Lawyers in America — Litigation - Labor and Employment (2026), Best Lawyers in America — Additional Areas of Practice: (2026), and Best Lawyers in America — Employment Law - Management (2026). Serands clients in Atlanta, GA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • He takes the time to learn about the businesses he advises and tailor their employee relation strategies to promote a better workforce and a better workplace
  • For those clients with established union relationships, Mark has worked diligently to further his clients’ labor relations strategies, including successfully partnering with their union representatives
  • Clients appreciate the approach Mark takes in designing strategies that create internal response teams so that management and employees learn how to work together to address issues as they arise, which in turn fosters more open relationships
  • His practice has a particular emphasis on assisting employers in lawfully responding to union organizing efforts
  • having been involved in over 100 union campaigns and having argued numerous traditional labor cases before the National Labor Relations Board and federal courts of appeal
  • He has negotiated on behalf of management in collective bargaining negotiations and represented employers in dozens of labor arbitration cases, primarily across the manufacturing, retail and hospitality industries and in the public sector
  • He also has deep litigation experience in the employment arena, including defending discrimination claims, restrictive covenant litigation, wage and hour issues, and ERISA litigation
  • In his personal life, Mark is an avid hockey player and fan

Practice Areas Explained

Mark L. Keenan's Areas of Practice

Each practice area below reflects the types of cases Mark L. Keenan handles, with a brief overview of what that area of law covers.

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

Mark L. Keenan is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in Georgia →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Mark L. Keenan is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Georgia →

Jurisdictional Context

Why local counsel matters in Georgia

Practicing law in Georgia. Legal matters in Georgia are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Atlanta are typically filed in the local municipal court or the appropriate Georgia state district court, depending on subject matter and amount in controversy. An attorney licensed in Georgia brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Georgia courts without local counsel or pro hac vice admission.

Looking for additional Georgia attorneys? Browse all attorneys in Atlanta or all attorneys in Georgia.

Frequently Asked

Common questions about Mark L. Keenan

Where is Mark L. Keenan's law office located?
Mark L. Keenan's law practice is located in Atlanta, Georgia. The firm is Barnes & Thornburg LLP. You can contact the office directly through this profile page.
What practice areas does Mark L. Keenan handle?
Mark L. Keenan focuses on employment, litigation. Each practice area listed reflects experience handling cases of that type in Georgia.
Where did Mark L. Keenan go to law school?
Mark L. Keenan earned their education at (J.D., 1989); (—, 1989).
How can I contact Mark L. Keenan for a consultation?
You can contact Mark L. Keenan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Mark L. Keenan received?
Mark L. Keenan's notable recognition includes: Best Lawyers in America — Litigation - Labor and Employment; Best Lawyers in America — Additional Areas of Practice:; Best Lawyers in America — Employment Law - Management; Best Lawyers in America — Labor Law - Management.

Education

J.D.
University of Illinois College of Law
- 1989
University of Illinois at Urbana–Champaign
- 1989

Awards

Best Lawyers in America — Litigation - Labor and Employment
- 2026
Best Lawyers in America — Additional Areas of Practice:
- 2026
Best Lawyers in America — Employment Law - Management
- 2026
Best Lawyers in America — Labor Law - Management
- 2026

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