Skip to content
LAWYER PROFILE

Ropes & Gray LLP

Brien T O'Connor

Boston, USA USA Guide 2021 Ranked in 1 departments
Ranked in : Litigation: White-Collar Crime & Government Investigations
chambers review
Lawyer Information
chambers review
Lawyer Information

Lawyer profile for USA 2021

USA

Chambers Review

Chambers Research is conducted by 200 Research Analysts, across 200 jurisdictions and provides nearly 6,000 rankings tables. Annually we collect hundreds of thousands of responses from clients, the majority via in-depth interview. Learn more about our methodology.

USA
Litigation: White-Collar Crime & Government Investigations - Massachusetts

Band 1

Brien O'Connor is recognized as a foremost practitioner in the corporate criminal and government investigation space.
"Brien is a very experienced white-collar lawyer who commands a lot of respect, he's a great advocate to have on your side."
Learn more about this team View ranking table

Lawyer information

This content is provided by Brien T O'Connor

Practice Areas

Brien O’Connor is an accomplished trial lawyer who has also negotiated some of the most significant corporate criminal and civil resolutions in the country. Widely recognized as one of the nation’s leading white collar defense lawyers, Brien has been characterized by Chambers USA as “a hugely experienced and well-respected litigator who delivers both quality service and quality result.”

Brien focuses his practice on representing corporations and individuals in government investigations and litigation, including civil False Claims Act cases. He regularly counsels clients on matters involving alleged health care fraud and abuse, securities fraud, tax crimes, export law violations, and other fraud and corruption. He has successfully litigated numerous civil and criminal cases, including multi-district civil litigation and False Claims Act cases. Brien also conducts internal investigations and compliance reviews for corporate clients.

A former Assistant U.S. Attorney for the District of Massachusetts and Chief of that office’s Public Corruption and Special Prosecutions Unit, Brien spent 10 years investigating and prosecuting cases involving complex securities, health care, insurance, tax and bank fraud; drug trafficking, money laundering and RICO violations; and public corruption and other federal crimes. Brien has successfully tried numerous cases to juries and successfully handled several federal appeals.

USA
Brien T O'Connor

Ropes & Gray LLP

yellow-guide 16 YEARS RANKED
phone
Phone number
firm
Office

Prudential Tower

800 Boylston Street

Boston

Massachusetts

USA

MA 02199-3600

guide
Ranked In

USA 2021

USA 2020

USA 2019

USA 2018

USA 2017

View Firm Profile
Share profile:

Discover other lawyers at Ropes & Gray LLP

View firm profile
Laura Hoey
Band 3
Laura HoeyRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Chicago, USA
Laura Hoey
Band 3
Laura HoeyRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Chicago, USA
Aaron Katz
Up and Coming
Aaron KatzRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Boston, USA
Aaron Katz
Up and Coming
Aaron KatzRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Boston, USA
Joshua S Levy
Band 1
Joshua S LevyRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Boston, USA
Joshua S Levy
Band 1
Joshua S LevyRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Boston, USA
Alexandre H Rene
Band 4
Alexandre H ReneRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Washington, DC, USA
Alexandre H Rene
Band 4
Alexandre H ReneRopes & Gray LLPLitigation: White-Collar Crime & Government Investigations Washington, DC, USA