Diana Lloyd is co-chair of the firm’s Government Enforcement & Compliance Practice Group. She has over 25 years of experience in federal and state government enforcement matters, internal investigations and related business and securities litigation. An experienced trial and appellate attorney, Ms. Lloyd has also had considerable success dissuading governmental agencies from pursuing any enforcement or criminal action against her clients. As an Assistant US Attorney in Boston, she received numerous awards for excellence from the US Attorney and various federal law enforcement agencies. Ms. Lloyd has been ranked among the top 50 women and top 100 Massachusetts Super Lawyers, has been recognized as a Massachusetts Super Lawyer since 2005 and is listed in Chambers USA and Best Lawyers in America. She has been selected for inclusion in The International Who’s Who of Business Crime Lawyers each year since 2010.
Government Enforcement & Compliance: extensive experience representing companies and individuals subjected to government investigations and prosecutions or in need of representation in connection with internal corporate investigations.
Complex Financial Litigation & Securities Litigation: handle private and SEC securities litigation, represent individuals and corporate clients before the SEC and FINRA.
Prosecutorial: Assistant US Attorney, Boston in Major Crimes and Economic Crimes Units; Special Assistant District Attorney, Suffolk County District Attorney's Office.
Private Practice: Sullivan & Cromwell, New York; Skadden, Arps, Slate, Meagher & Flom, Boston.
- Defense of corporations, investment advisers and individuals in securities-related investigations, including whistleblower investigations, involving variety of civil and potentially criminal allegations.
- Representation of major pharmaceutical companies in federal investigations into sales and marketing practices.
- Representation of educational institutions in internal investigations and government investigations.
- Representation of healthcare-related entities in government investigations.
- Provide FCPA advice to entities in connection with internal and government investigations.
- Representation of medical device company in qui tam whistleblower investigation.
- Obtained reversal of federal criminal conviction for multi-year conspiracy involved alleged environmental fraud.
- Successful representation of individuals and entities investigated in federal public corruption investigations.
- Special Counsel to the Massachusetts Supreme Judicial Court, for the purpose of conducting an independent inquiry regarding the Massachusetts District Courts and the Boston Municipal Court.
- Defense of former executive of major medical device manufacturer who was acquitted of conspiracy to defraud the US after a lengthy trial.
- Representation of senior executives accused of sophisticated financial fraud.
- Successful representation of numerous individuals in federal healthcare fraud investigations.
Publications and Presentations
- "2016-2017 Federal Developments," moderator, Boston Bar Association Health Care Fraud CLE, Boston, May 2017.
- "2015-2016 Federal Developments," moderator, Boston Bar Association Health Care Fraud CLE, Boston, May 2016.
- “1st Circ. Crime-Fraud Ruling Challenges Atty-Client Privilege,” co-author, White Collar Law360, February 2016.
- "2014-2015 Federal Developments," moderator, Boston Bar Association Health Care Fraud CLE, Boston, May 2015.
- “Attorneys React to High Court’s Sarbanes-Oxley ‘Fish’ Ruling,” quoted, Securities Law360, February 2015.
- “Yates: A Welcome End to Prosecutorial ‘Fishing’ Expedition,” author, Securities Law30, February 2015.
- “Justices Smell Something ‘Fishy’ in Anti-Shredding Case,” co-author, White Collar Law360, November 2014.
- “High Court To Go Fishing For Answers In Anti-Shredding Case,” co-author, White Collar Law360, October 2014.
- “When Compliance and Audit Executives Blow the Whistle,” quoted, Compliance Week, September 2014.
- “New DOJ Stance on False Statements May Bring Sea Change,” co-author, White Collar Law360, June 2014.
- “2013-14 Federal Developments,” moderator, Boston Bar Association Health Care Fraud CLE, Boston, May 2014.
- “Internal Investigations in Securities Matters,” moderator, Boston Bar Association, January 2014.
- "What Judges Think of Binding Corporate Plea Agreements,” co-author, White Collar Law360, December 2013.
- “SEC Admissions Policy After Falcone — Proceed with Caution,” co-author, White Collar Law360, September 2013.
- “Federal Developments,” moderator, Boston Bar Association CLE Seminar - Health Care Fraud 2013: There Are New Sheriffs in Town, Boston, May 2013.
- “Q&A With Choate’s Diana Lloyd,” featured, White Collar Law360, April 2013.
- “$104M Whistleblower Award – A Sign of Things to Come,” co-author, Law360, December 2012.
- “SEC/DOJ Developments and Outlook,” moderator, Boston Bar Association CLE Seminar - Securities Fraud 2012: Recent Developments in Enforcement and How SEC Administration Trials May Alter the Landscape, Boston, May 2012.
- “Tough Comp Rules Anticipated Under Dodd-Frank Act,” quoted, Mass Lawyers Weekly, January 2012.
- “Broadening Enforcement of Exec Compensation Clawbacks,” co-author, White Collar Law360, December 2011.
- "Responding to Government Subpoenas and Search Warrants," moderator, Boston Bar Association, November 2011.
- “Five Questions Boards Must Ask About the Whistle-Blower Rule,” author, Agenda Week, July 2011.
- “Liability Without Fault: New Enforcement Trends Against Corporate Executives,” co-author, Bloomberg Law Reports, February 2011.
- “What Every Board Member Needs to Know,” panelist, Association for Corporate Growth Boston Women’s Executive Forum, March 2010.
- “Meet the New US Attorney: A Program with Carmen Ortiz,” moderator, Boston Bar Association, March 2010.
- “Legal Power Couple: Jordan Hershman and Diana Lloyd,” profiled, Law360, February 2010.
- “Gain Insight from Varying States Surrounding Current and Pending Regulations,” moderator, CBI Pharmaceutical Compliance Congress, January 2010.
- “W.R. Grace: Lessons Learned from the Largest Environmental Prosecution in US History,” moderator, Boston Bar Association, October 2009.
- "Responding to a Government Subpoena," presenter, New England Legal Foundation, October 2008.
- Criminal Section Bench/Bar Conference, co-chair, Boston Bar Association, October 2008.
- Criminal Section Health Care Fraud Seminar, co-chair, Boston Bar Association, April 2007.
- “Interacting With Employees,” co-presenter, A Step-By-Step Guide to Conducting Internal Investigations for the Pharmaceutical Industry, American Conference Institute, January 2007.
- “Electronic Discovery in Criminal Cases,” panel moderator, Boston Bar Association, January 2007.
- “Trial Practice Luncheon Roundtable Series: Pretrial Preparation and Jury Issues,” speaker, Massachusetts Bar Association Seminar, July-September, 2006.
- “25 Years of Criminal Enforcement of the Pharmaceutical Industry: Increasing Scrutiny and Shifting Theories,” co-author, Pharmaceutical Executive, August 2006.
- “Off-Label Promotion,” co-author, Pharmaceutical Executive, January 2006.
- “Fundamentals of Preparing and Trying Your First Jury Case,” speaker, Massachusetts Bar Association Seminar, 2003, 2004, 2005.
- “Fiduciary Duties of Directors, Officers and Owners of Closely Held Businesses,” speaker, Massachusetts Continuing Legal Education Seminar, 2004.
- “RICO in Federal Civil Litigation,” co-author, Federal Litigation in the First Circuit, Massachusetts Continuing Legal Education, 2004.
Professional and Community Involvement
Ms. Lloyd serves as President-Elect of the Boston Bar Foundation and is also a member of its Executive Committee. She is a prior member of the Boston Bar Association Council and Executive Committee. Ms. Lloyd served as co-chair of the Steering Committee for the Criminal Section of the Boston Bar Association from 2008-2010 and has also served on the Board of Trustees of the Women’s Bar Foundation. For six years, Ms. Lloyd was a member of the Federal Criminal Justice Act panel, accepting court appointments to represent indigent defendants in federal criminal cases. She is a Trustee of Gann Academy, is active in Combined Jewish Philanthropies, and previously served on various committees for the South Area Solomon Schechter Day School. She has taught in the Citizen Schools Trial Advocacy Program, an after-school enrichment program for Boston public school students. Ms. Lloyd is co-chair of Choate's Hiring Committee, a current member of its Diversity & Inclusion Committee and a former member of the firm's Executive and Associates Committees.
Education & Credentials
New York University School of Law
JD, MA, 1989
Editor in Chief, New York University Law Review
St. Lawrence University
BA, 1984, Valedictorian, summa cum laude, Fulbright French Government Teaching Assistant
US District Court, Massachusetts
US Court of Appeals, First & Third Circuits
- Honorable Amalya L. Kearse
- U.S. Court of Appeals, Second Circuit
Practice Group Leader - Government Enforcement & Compliance
Melissa Bayer Tearney
Department Co-Chair - Litigation
Christine G. Savage
Practice Group Leader - Healthcare
Michael T. Gass
Practice Group Leader - Securities Litigation & Corporate Governance
Emily F. Hodge
Chambers USA Guide to America’s Leading Lawyers for Business recognized 34 Choate lawyers as leading counsel in their respective fields, with six receiving Band 1 rankings.