Government Enforcement/Compliance

Mike Gass, Christine Savage
Diana Lloyd, Jack Cinquegrana, Melissa Tearney

Publications & Events

Diana Lloyd and Kevin Ma on Anti-Shredding Fish Ruling

Choate Launches Complex Trial & Appellate Litigation Group

Stuart Glass on Insider Trading Rehearing

Jack Cinquegrana on Underpaid Public Defenders and Assistant DAs

Stuart Glass on New Insider Trading Prosecution Standards

Emily Hodge and Jacqueline Mantica on Patient Assistance Fraud and Abuse Risks

Choate Garners 31 National and Boston “Tier 1” Rankings in US News & World Report’s 2015 “Best Law Firms” Report

Diana Lloyd and Kevin Ma on Improper "Anti-Shredding" Conviction

Diana Lloyd and Kevin Ma on Obstructing an Investigation

Diana Lloyd on Becoming a Whistleblower

2015 Best Lawyers in America

FDA Continues to Ask Those Seeking Clarity on the Rules Regarding Permissible Scientific Communication to Be Patient

Diana Lloyd on the DOJ's New Stance on False Statements in Law360

Melissa Tearney Featured in White Collar Law360 Q&A Session

Diana Lloyd and Jacqueline Mantica on Binding Corporate Plea Agreements in Law360

Melissa Tearney featured in Boston Globe and Boston Business Journal

Diana Lloyd on the SEC's Admissions Policy in Law360

2014 Best Lawyers in America

First-in-the-Nation Decision Upholds the Attorney-Client Privilege for Law Firms, Emphasizing the Important Role of Their In-House Counsel

Michael Gass in Corporate Board Member on 10b5-1 Plans and Insider Trading

Diana Lloyd Speaks on Healthcare Fraud

Diana Lloyd Profiled in White Collar Law360

  • Diana Lloyd and Kevin Ma closely watch Yates v. United States to deliver the latest news in the progression of this case.  Read more...

  • Choate launches a dedicated Complex Trial & Appellate Litigation Group comprised of seasoned trial attorneys from its leading litigation practice.  Read more...

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    Over one-third of equity partners and majority of practice areas recognized for excellence

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    Choate was ranked among the best law firms in this year's US News - Best Lawyers "Best Law Firms" list, and has been named as an elite "National Tier 1" law firm in 4 practice areas.  Choate also received top "Tier 1" Boston rankings in 27 practice areas.  Read more...

  • Over 70% of equity partners named Best in America by Best LawyersRead more...

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    Choate’s expertise covers the spectrum of securities fraud cases, including DOJ investigations, SEC investigations and enforcement actions, and private class action and derivative litigation.  We have successfully defended many companies and individuals in a variety of cases involving revenue recognition, insider trading, market manipulation, market timing and stock option dating practices.  We currently represent companies, special committees and individuals in a number of options dating cases. 

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    Choate represents companies and individuals in connection with major Department of Justice healthcare fraud investigations and prosecutions.  Recent matters include the defense of national pharmaceutical companies and their officers and employees, a national health insurer in an aggressively litigated qui tam case, and one of the state’s largest managed care health plans.   


government enforcement/compliance

"a thriving national practice, driven by its expertise in white-collar crime"

Chambers USA

Represent companies and individuals in government investigations and prosecutions. 

Complex Internal Investigations

Conduct internal investigations for public and private companies, and due diligence and portfolio company investigations for private equity funds. 

Veteran Former Prosecutors

Three partners are former Assistant US Attorneys with extensive prosecution experience.  Practice group partners recognized for excellence:

  • Fellow of American College of Trial Lawyers
  • President of Boston Bar Association
  • Chambers USA
  • The Best Lawyers in America
  • The International Who’s Who of Business Crime Lawyers
  • Massachusetts Lawyers Weekly Top Women of Law
  • Top 50 Women Massachusetts Super Lawyers
  • Massachusetts Super Lawyers Top 100

Resolving Sensitive Matters Early

Group focused on:

  • Resolving matters at earliest possible stage before indictment or trial and without publicity
  • Treating sensitive matters discreetly
  • Achieving success at every level of engagement


Litigators expert in securities, healthcare, corporate, tax, finance, IP, labor & employment and environmental law.

Our Practice

Experience in a broad range of criminal and civil investigations and litigation, involving:

Healthcare Fraud

  • Pharmaceutical and medical device marketing practices
  • Anti-kickback claims, false claims and whistleblower (qui tam) defense
  • Grants management practices
  • Internal investigations and compliance programs

Financial Fraud

  • Securities fraud, revenue recognition, options dating and insider trading
  • Hedge funds, mortgage backed securities
  • Dodd-Frank whistleblower investigations
  • Fraud and false claims in government contracts
  • Internal investigations and board representation

Foreign Corrupt Practices

  • Internal investigations
  • Compliance and training
  • Remediation and reporting

Other White Collar Engagements

  • Export controls investigations
  • Environmental crimes
  • Tax investigations, disclosures and defense
  • Defense contracting fraud

National Reach

Lawyers appear before civil and criminal courts and government agencies across United States.


Thank you for reaching out to contact Choate. Before you send your message, we wanted to make sure you are aware of the following. Please do not send any confidential information in response to this link. Sending an e-mail to Choate does not give rise to an attorney-client relationship, and will not be deemed to disqualify Choate from undertaking any engagement for a current or future client.  Before any attorney-client engagement may be formed, Choate will need to check for possible conflicts of interest, you will need to consider whether you wish to retain Choate as counsel, and we will need to consider whether we wish to accept the potential engagement. In the meantime, Choate reserves the right to represent parties with interests adverse to you.