Attorney

Joseph R. McMahon, III

Founder & Principal Attorney

Decades of Courtroom Experience and Client-Focused Representation

With over 30 years of legal experience, Joseph R. McMahon, III—known to his clients and colleagues as Joe—has built a reputation as a sharp, strategic, and client-centered attorney. A Jefferson Parish native, Joe began his legal career as a prosecutor in the Orleans Parish District Attorney’s Office, where he gained extensive courtroom experience and honed his skills as a trial lawyer.

Extensive Civil Practice Throughout Louisiana and Beyond

Since departing the Orleans Parish District Attorney’s Office in 1996, Joe has built a respected private law practice. He has represented a broad range of clients—from national insurance companies and local businesses to individuals and families seeking trusted legal guidance. He has litigated thousands of cases in state and federal courts throughout Louisiana, as well as in Alabama, earning respect for his preparedness, persuasive advocacy, and commitment to doing right by his clients.

Complex Litigation, Successions, and Class Action Success

Joe’s civil practice spans everything from successions and family law to complex insurance disputes, general liability defense, and class action litigation. He has served as lead counsel in numerous high-stakes cases, including Louisiana’s red light traffic camera class action lawsuits, which successfully returned millions of dollars to drivers wrongfully ticketed under unconstitutional ordinances.

Court Admissions:

  • All Louisiana State Courts
  • All Alabama State Courts
  • U.S. District Courts in Louisiana
  • U.S. Fifth Circuit Court of Appeals

Why Clients Trust Joe McMahon:

  • Trial-Tested: Joe has tried hundreds of cases, giving him a deep understanding of both courtroom dynamics and how to anticipate challenges before they arise.
  • Balanced Perspective: Having represented both plaintiffs and defendants—Joe brings a balanced, strategic approach to legal disputes.
  • Straight Talk & Personal Attention: Joe takes pride in being accessible to his clients. He explains legal matters in plain language and ensures clients always understand where their case stands.

Whether you’re seeking guidance on a legal dispute, working through a family matter, or need a strong advocate in court, Joe McMahon is a trusted name in Louisiana law.