Gibbs Mura represents plaintiffs in complex litigation nationwide. Our Philadelphia office allows us to better serve clients in Pennsylvania and the surrounding region while continuing to bring the resources of a national plaintiffs’ firm to high-stakes cases.
If you are seeking legal assistance involving product liability, mass torts, class actions, consumer protection, or other complex litigation, our Philadelphia team may be able to help you understand your legal options.
Meet the Attorneys Leading Our Philadelphia Office
Michael Weinkowitz – Managing Partner of our Philadelphia Office

Michael Weinkowitz is a partner at Gibbs Mura and a nationally recognized litigator representing plaintiffs in complex product liability and mass tort litigation throughout the United States. For more than two decades, he has been appointed by courts to leadership positions in major multidistrict litigations and coordinated state court proceedings involving pharmaceuticals, medical devices, consumer products, and technology platforms.
Michael’s work includes leadership in litigation involving social media addiction, Xarelto, Yaz/Yasmin/Ocella, Tylenol, Fresenius Granuflo/Naturalyte, Johnson & Johnson talcum powder products, and Vioxx.
Michael’s Pennsylvania-based Litigation Highlights
Michael has litigated dozens of cases in Pennsylvania courts, and is recognized as a Pennsylvania Super Lawyer in the areas of complex litigation, class actions/mass torts, and product liability. In addition, Michael serves as an Advisory Board member for the LexisNexis Practice Guides on Pennsylvania Civil Pre-Trial Practice and Pennsylvania Civil Trial Practice.
Alicia Armstrong – Associate Attorney

Alicia Armstrong is an associate at Gibbs Mura who represents plaintiffs in complex litigation seeking accountability for corporate misconduct and institutional failures. She is a member of the Social Media Adolescent Addiction trial teams representing school districts in the federal multidistrict consolidated action.
philadelphia office LOCATION
One Commerce Square
2005 Market Street
32nd Floor
Philadelphia, PA 19103
215-486-0150
By Appointment.
Gibbs Mura’s Philadelphia office provides a local point of access for clients and co-counsel in Pennsylvania and the East Coast.





