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Sam Lonergan has a broad practice representing major US and international corporations in a variety of complex matters, including commercial disputes, product liability, antitrust, qui tam matters, and other litigation involving fraud and abuse. He has litigated on behalf of clients in a wide range of industry sectors, including pharmaceuticals, finance, insurance, telecommunications, energy, aircraft, and retail, always with a focus on providing practical advice that balances his clients’ business and financial needs with legal considerations.

Mr. Lonergan represents clients nationally in US federal and state courts, administrative proceedings, and mediations. He is experienced at developing and efficiently executing litigation strategies to achieve his clients’ goals. He has successfully taken multiple matters to trial in state and federal courts, and served as a key member of the team that obtained the reversal by the Alabama Supreme Court of a $33 million jury verdict and judgment in a fraud action brought by the State of Alabama.


+1-212-836-7591

Samuel Lonergan

Partner
Arnold & Porter
New York, NY

Practice Area: Antitrust/Competition

All-Star

WHAT CLIENTS SAY

"Sam is a true partner to our company and always weighs the risks and benefits and pros and cons of any decisions with me."


ALL-STAR BIOGRAPHY

Sam Lonergan has a broad practice representing major US and international corporations in a variety of complex matters, including commercial disputes, product liability, antitrust, qui tam matters, and other litigation involving fraud and abuse. He has litigated on behalf of clients in a wide range of industry sectors, including pharmaceuticals, finance, insurance, telecommunications, energy, aircraft, and retail, always with a focus on providing practical advice that balances his clients’ business and financial needs with legal considerations.

Mr. Lonergan represents clients nationally in US federal and state courts, administrative proceedings, and mediations. He is experienced at developing and efficiently executing litigation strategies to achieve his clients’ goals. He has successfully taken multiple matters to trial in state and federal courts, and served as a key member of the team that obtained the reversal by the Alabama Supreme Court of a $33 million jury verdict and judgment in a fraud action brought by the State of Alabama.

Visit All-Star's Firm »


+1-212-836-7591

Samuel Lonergan

Partner
Arnold & Porter
New York, NY

Practice Area: Antitrust/Competition

M&A All-Star

ALL-STAR BIOGRAPHY

Sam Lonergan has a broad practice representing major US and international corporations in a variety of complex matters, including commercial disputes, product liability, antitrust, qui tam matters, and other litigation involving fraud and abuse. He has litigated on behalf of clients in a wide range of industry sectors, including pharmaceuticals, finance, insurance, telecommunications, energy, aircraft, and retail, always with a focus on providing practical advice that balances his clients’ business and financial needs with legal considerations.

Mr. Lonergan represents clients nationally in US federal and state courts, administrative proceedings, and mediations. He is experienced at developing and efficiently executing litigation strategies to achieve his clients’ goals. He has successfully taken multiple matters to trial in state and federal courts, and served as a key member of the team that obtained the reversal by the Alabama Supreme Court of a $33 million jury verdict and judgment in a fraud action brought by the State of Alabama.

Visit All-Star's Firm »