Michael A. Lesser

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Partner at Thornton Law Firm LLP
84 State Street, 4th Floor, Boston, MA 02109
View Michael A. Lesser's office location
Mr. Lesser joined Thornton Law Firm LLP as an associate in 1995 after previously clerking at the firm. He heads the firm’s False Claims Act / Whistleblower litigation section, representing individuals that report fraud on the Federal and State governments. While practicing in traditional areas of False Claims litigation, including Medicare and Medicaid fraud, Mr. Lesser also handles False Claims Act litigation involving finance and bank fraud.

During his time at Thornton Law Firm LLP, Mr. Lesser has represented clients in all of the firm’s practice areas, including victims of exposure to asbestos, glycol ethers, and lead. Mr. Lesser was also part of the firm’s litigation team that represented the Commonwealth of Massachusetts in its claims against the tobacco industry. Mr. Lesser was appointed Special Assistant Attorney General representing the Commonwealth from 1996 through 1999 for this purpose.
Overall Rating

4.4
Overall Rating

4.4

Peer Reviews

4.4

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- #1,008 in weekly profile views out of 32,297 Attorneys in Boston, MA
- #85,092 in weekly profile views out of 2,343,578 total attorneys Overall

Attorney Awards

About Attorney Awards

Mr. Lesser joined Thornton Law Firm as an associate in 1995 after previously clerking at the firm. He heads the firm’s Whistleblower litigation section, with a focus on representing individuals that report violations of securities laws subject to the SEC Whistleblowing statute and individuals that report fraud on the government through the Federal and state False Claims Act statutes.

In 2020 Mr. Lesser’s client, an FX trader who worked for Bank of New York Mellon, was awarded the then largest individual SEC whistleblower award in the history of SEC whistleblower litigation. The client’s almost $50 million dollar award was for providing original information to the Securities and Exchange Commission that resulted in a successful enforcement action that returned a significant amount of money to harmed investors.

Mr. Lesser was rated as one of New England’s Top Rated Lawyers by ALM Media and Martindale-Hubbell™ from 2020-2022. Mr. Lesser was named an Up-and-Coming Lawyer by Massachusetts Lawyers’ Weekly in 2002. He was selected as a Massachusetts Super Lawyer in 2021, 2022, and 2023. He was selected as a Massachusetts Super Lawyers Rising Star in 2005 and 2010.

False Claims and Fraud
Whistleblower Litigation

University Attended:

Brandeis University, B.A., cum laude, 1992

Law School Attended:

Boston University, J.D., 1995

Year of First Admission:

1995

Admission:

1995, Massachusetts; 1997, U.S. District Court, District of Massachusetts; 2006, U.S. Court of Appeals, First Circuit

Memberships:

American Bar Association; American Association for Justice

Languages:

English

ISLN:

910036557

Contingency Fee

33%

Other Information

Free initial consultation

4.4/5.0

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Boston, MA
84 State Street, 4th Floor
Boston, MA 02109

833-636-9837 Phone
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Contact Michael A. Lesser

Contact Information:

833-636-9837 Phone

617-720-2445 Fax

www.tenlaw.com/attorneys/michael-a-lesser

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