Constantine Cannon’s Whistleblower Practice

Constantine Cannon is an internationally recognized law firm with roughly fifty lawyers in four offices located in New York, Washington, San Francisco and London. We have a strong connection to government enforcement as many of our attorneys prior to joining the firm have held senior government positions at the Department of Justice, US Attorney’s Office, Federal Trade Commission, US Senate Judiciary Committee, New York State Attorney General’s Office, Manhattan District Attorney’s Office and New York Stock Exchange.

In addition to our extensive whistleblower experience, our attorneys also specialize in antitrust, complex commercial litigation, intellectual property and compliance. Over the past ten years, the firm has recovered for its clients more than $5 billion and tens of billions of dollars more in injunctive relief, including two of the top five antitrust settlements in US history. This is in addition to the $1.3 billion our whistleblower lawyers have recovered for the government and $240 million they have recovered for their whistleblower clients in cases on which they have served as lead counsel. The firm’s experience spans across multiple industries including healthcare, banking, pharmaceuticals, securities and commodities trading, telecommunications, insurance, high tech, the Internet and government contracting.

To review the complete roster of Constantine Cannon’s US and European lawyers, click here. To learn more about the Constantine Cannon Whistleblower Lawyer Team, see immediately below.


About Our Team

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Sarah “Poppy” Alexander

Sarah “Poppy” Alexander is an associate in Constantine Cannon’s San Francisco office. She represents whistleblowers and government entities in qui tam lawsuits in both federal and state court, as well as under the Internal Revenue Service and Securities and Exchange Commission’s whistleblower programs. She earned her J.D. from Harvard Law School and holds an M.A. in Political Theory.  To learn more about Ms. Alexander, click here.

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Phillip Brown

Phillip Brown is as an associate in Constantine Cannon’s New York office. He specializes in assisting with the development of potential new whistleblower cases. Mr. Brown received his J.D. from New York University School of Law and graduated cum laude from Creighton University. Mr. Brown is admitted to practice in the State of New York. To learn more about Mr. Brown, click here.

 

Jason Enzler

Jason Enzler

Jason Enzler joined Constantine Cannon in 2008 at the firm’s Washington, DC office. His practice focuses on commercial litigation, antitrust, and representing whistleblowers. Mr. Enzler earned a J.D., magna cum laude, from The Catholic University, Columbus School of Law in 2005. Mr. Enzler is admitted to practice in the District of Columbia and in New York. To learn more about Mr. Enzler, click here.

Rosie Griffin

Rosie Dawn Griffin

Rosie Dawn Griffin is an attorney in Constantine Cannon’s Washington, DC office. She represents whistleblowers under the federal False Claims Act, equivalent state acts, and the whistleblower programs of the Internal Revenue Service, Securities and Exchange Commission, Commodity Futures Trading Commission, and Department of Transportation. Read more about Ms. Griffin here.

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Anne Hayes Hartman

Anne Hayes Hartman is a partner in the San Francisco office and has over 16 years of experience representing whistleblowers in qui tam lawsuits. She has pursued fraud claims in numerous industries, and has extensive complex commercial litigation and trial experience in state and federal courts as well as various ADR contexts. Ms. Hartman earned both a J.D. and an M.P.P. from the University of California-Berkeley. To learn more about Ms. Hartman, click here.

Eric R. Havian

Eric R. Havian is a partner in our San Francisco office. He has extensive experience representing whistleblowers in qui tam lawsuits. He has also represented numerous local governments in False Claims Act matters, including the County of Los Angeles and the City of San Francisco. In 2010 California Lawyer Magazine named Mr. Havian a “California Lawyer of the Year.” He has also been named as one of the Top 10 “Winning” Attorneys in the nation. To learn more about Mr. Havian, click here.

Mary InmanMary Inman

Mary Inman is a partner in Constantine Cannon’s San Francisco Office. She represents whistleblowers in qui tam lawsuits. She also represents claimants under the Internal Revenue Service and Securities and Exchange Commission’s whistleblower programs. Ms. Inman is a recognized expert and frequent author and speaker on areas related to health care reimbursement and government procurement. To learn more about Ms. Inman, click here.


Molly KnoblerMolly Knobler

Molly Knobler joined Constantine Cannon in 2015 at the firm’s Washington, DC office. She has significant experience representing qui tam whistleblowers in health care and defense contracting cases. Ms. Knobler earned her J.D. in 2011 from Stanford Law School. Ms. Knobler is admitted to practice in the District of Columbia and in California. To learn more about Ms. Knobler, click here.

Marlene KhouryMarlene Koury

Marlene Koury is an associate in the New York office of Constantine Cannon. Ms. Koury joined the firm in 2007 and focuses on antitrust litigation and counseling and representing whistleblowers under the False Claims Act and the Dodd-Frank/Wall Street Reform Act. Ms. Koury earned her J.D., cum laude, from Seattle University.. Ms. Koury is admitted to practice in New York. To learn more about Ms. Koury, click here.

Wayne T. LampreyWayne T. Lamprey

Wayne T. Lamprey, a partner in the San Francisco office, specializes in representing whistleblowers. He has investigated and successfully prosecuted fraud for over 25 years. He has experience with schemes in a wide range of industries including health care, defense and government contracting, shipping, banking, securities and finance, energy, public resources, accounting, telecommunications, and more. To learn more about Mr. Lamprey, click here.


hlitmanHarry Litman

Harry Litman, Of Counsel, has extensive litigation experience in courts around the country. Prior to joining Constantine Cannon, Mr. Litman, practiced at Phillips & Cohen LLP, while separately maintaining his own law practice, acting as lead counsel in several significant whistleblower cases and representing corporations and individuals in federal and state courts, including two cases in the U.S. Supreme Court. To learn more about Mr. Litman, click here.

Hamsa Mahendranathan

Hamsa Mahendranathan

Hamsa Mahendranathan joined Constantine Cannon in February 2015 as an associate in the New York office. Prior to joining Constantine Cannon, Ms. Mahendranathan practiced law at Mayer Brown LLP, where she focused on complex commercial litigation. Read more about Ms. Mahendranathan here.

tmccormack2Tim McCormack

Tim McCormack is a partner in Constantine Cannon’s Washington, DC office. He specializes in representing whistleblowers in qui tam lawsuits. Mr. McCormack is a recognized expert and frequent author and speaker on issues related to health care reimbursement and coding, provider contracting, commercial and government managed care programs, the Stark and Anti-Kickback laws, and the use of data and analytics in the detection and remediation of fraud. To learn more about Mr. McCormack, click here.


Jessica MooreJessica T. Moore

Jessica T. Moore is a partner in the San Francisco office of Constantine Cannon LLP. Ms. Moore has extensive litigation and trial experience in whistleblower matters and complex cases. She brings significant analytical and investigative expertise to her representation of clients. To learn more about Ms. Moore, click here.

Hallie Noecker

Hallie Noecker

Hallie Noecker is an attorney in the San Francisco office of Constantine Cannon. She represents whistleblowers under the federal False Claims Act, equivalent state acts, and the whistleblower programs of the Internal Revenue Service, Securities and Exchange Commission, Commodity Futures Trading Commission, and Department of Transportation. Read more about Ms. Noecker here.

“RichardRichard Pike

Richard Pike is a partner in the firm’s Antitrust Litigation and Counselling and Whistleblower Practice Groups. His practice covers a broad range of litigation and counselling, specializing in competition litigation and regulatory appeals, particularly in relation to telecommunications. He also counsels whistleblowers under the various whistleblower regimes in Europe and the United States. To learn more about Mr. Pike, click here.

Gordon Scnhell

Gordon Schnell

Gordon Schnell has been a partner of Constantine Cannon since 1999, focusing on antitrust, fraud and whistleblower law. He practices before all levels of federal court and regularly represents clients on antitrust and fraud matters before the DOJ, FTC and other federal and state enforcement agencies. Mr. Schnell represents whistleblowers under the False Claims Act, Dodd-Frank/Wall Street Reform Act and other whistleblower laws. To learn more about Mr. Schnell, click here.

Ronny Valdes

Ronny Valdes

Ronny Valdes is an attorney in Constantine Cannon’s Washington, DC office. Ronny’s practice is focused on representing whistleblowers under the federal False Claims Act and numerous state law equivalents, and the whistleblower programs of the Internal Revenue Service, Securities and Exchange Commission, Commodity Futures Trading Commission, and Department of Transportation. Read more about Mr. Valdes here.

Max Voldman

Max Voldman

Max Voldman is an attorney in Constantine Cannon’s Washington, DC office. Max’s practice is focused on representing whistleblowers under the federal False Claims Act and numerous state law equivalents, and the whistleblower programs of the Internal Revenue Service, Securities and Exchange Commission, Commodity Futures Trading Commission, and Department of Transportation. Read more about Mr. Voldman here.

Ari Yampolsky

Ari Yampolsky

Ari Yampolsky is an associate in Constantine Cannon’s San Francisco office. He represents whistleblowers in qui tam lawsuits brought under the Federal and various state False Claims Acts. Mr. Yampolsky earned a J.D., magna cum laude, from the University of California, Irvine School of Law, and his B.A. in Philosophy and English from Wesleyan University. Mr. Yampolsky is admitted to practice in California. To learn more about Mr. Yampolsky, click here.

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To learn more about our lawyers in New York, DC, San Francisco and London, click here.