Brendan F. Quigley


Brendan Quigley

New York

P: +1.212.408.2520
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"Brendan is an excellent attorney who draws on trial experience to help clients navigate disputes in anticipation of litigation and can see things through to an effective solution."

Chambers USA 2024

"He is a very strong, technical lawyer who, as a former prosecutor, has very good relationships out of the Southern District of New York."

Chambers USA 2023

Brendan Quigley is a former federal prosecutor in the Southern District of New York, a U.S. Marine combat veteran, and an experienced first-chair trial lawyer. He helps business executives, boards of directors, and companies navigate both government investigations and commercial disputes. Chambers USA 2024 describes him as “uniquely calm and persuasive” and as providing “pragmatic, sound advice and prompt responses to questions.”

Government Investigations/Enforcement: Brendan's government investigations practice draws on his experience as a former senior member of the Southern District of New York's Securities and Commodities Fraud Unit and its Terrorism and International Narcotics Unit. He focuses on matters involving the securities and commodities laws, international transactions, and the False Claims Act. He has represented clients in front of government regulators including the Department of Justice (including the Criminal Division Fraud Section, the Civil Division Fraud Section, the National Security Division, and numerous U.S. Attorney's Offices), the New York Attorney General, the Manhattan District Attorney's Office, and the Securities and Exchange Commission. He has also assisted clients in conducting anti-corruption and sanctions-related risk assessments in connection with acquisitions, new business ventures, and transactions with state-owned entities.

Commercial Disputes: Drawing on his experience of having a first-chair role in over a dozen trials, Brendan also represents clients as both plaintiffs and defendants in commercial disputes. These matters often involve complex transactions and/or allegations of fraud or corruption. In 2023, for example, Brendan prevailed at trial in the Delaware Court of Chancery in a dispute among shareholders of a closely held corporation. In 2022, he was a key member of a team that prevailed in an intercreditor indenture litigation in federal bankruptcy court. In 2021, he successfully defeated a securities fraud lawsuit against a fintech company in New York state court.

Earlier in his legal career, Brendan spent a year clerking for the Honorable Joseph F. Bianco, then a U.S. District Judge in the Eastern District of New York, now of the Second Circuit.

Between 2001 and 2005, Brendan served as an officer in the U.S. Marine Corps. He completed two tours of combat duty in Iraq and was honorably discharged with the rank of Captain.

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