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Karen  M. Lerner


Healthcare Fraud


  • The University at  Albany, SUNY (B.A., 1988, summa cum laude, Phi Beta Kappa)
  • University of Pennsylvania School of Law (J.D., 1991)


  • United States Supreme Court
  • U.S. Court of Appeals for the 2nd and 3rd Circuits
  • U.S. Court of Appeals for the District of Columbia
  • U.S. District Court for the Southern and Eastern Districts of New York
  • U.S. District Court for the District of New Jersey
  • New York State Bar
  • New Jersey State Bar
  • District of Columbia Bar
Karen M. Lerner
Tel: 212.371.6600
Fax: 212.751.2540
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  • Karen Lerner Named to 2022 Elite Women of the Plaintiffs Bar by The National Law Journal 
    05/13/2022 | The National Law Journal

    Kirby McInerney is proud to announce that The National Law Journal has named partner Karen Lerner one of its 2022 Elite Women of the Plaintiffs Bar, part of The National Law Journal's 2022 Elite Trial Lawyers awards.

  • Karen Lerner named to Law360’s 2022 Competition Editorial Advisory Board
    04/25/2022 | Law360

    Kirby McInerney is proud to announce that partner Karen Lerner has been named to Law360’s Competition Editorial Advisory Board for 2022.  The advisory board works together to provide feedback to Law360's editors on coverage, providing expert insight on how best to shape future content.

  • Kirby McInerney Appointed to Executive Committee in Precious Metals Futures Spoofing Case Against Bank of Nova Scotia

    On October 15, 2020, the Honorable Michael A. Shipp of the United States Court for the District of New Jersey appointed Karen M. Lerner to the Executive Committee in In re Bank of Nova Scotia Spoofing Litigation, 20 Civ. 11059 (D.N.J.).  The case originates from the Bank of Nova Scotia’s alleged price manipulation of gold and silver futures contracts traded on the Commodity Exchange, Inc. over the course of several years, which formed the basis of the bank’s recent settlement with the CFTC and the DOJ for $77.4 million.

  • Judge Consolidated JPMorgan Spoofing Suits, Taps Counsel
    10/09/2020 | Law360

    A New York federal judge on Friday consolidated seven proposed class actions alleging JPMorgan Chase has been illegally spoofing the futures market since 2009 and appointed Lowey Dannenberg PC and Kirby McInerney LLP as interim lead co-counsel.

  • Lowey, Kirby appointed lead counsel for JPMorgan treasury spoofing lawsuit

    A Manhattan federal judge appointed law firms Lowey Dannenberg and Kirby McInerney as lead counsel for proposed class action litigation accusing JP Morgan of deceptive trading in the treasury futures markets.  In his ruling, U.S. District Judge Paul Engelmayer cited the two firms’ experience litigating large commodities lawsuits, implicitly rejecting an argument by competitors Nussbaum Law Group (NLG) and Kessler Topaz Meltzer & Check that such an appointment would allow “repeat players” to dominate, which has been identified as a problem by some courts.

  • Legal Association Leader-Settles Obstruction Suit with Board
    05/01/2020 | Law360

    A Spanish attorney and officials with an international legal nonprofit told a D.C. federal court on Friday they struck a deal to settle claims that board members blocked him from assuming his duties as the organization's president after he was elected.

  • Investors’ $187M Big Bank Deals OK’d In Libor Rigging Case
    03/03/2020 | Law360

    The exchange-based investor class, represented by attorneys at Kirby McInerney LLP and Lovell Stewart Halebian Jacobson LLP, won initial approval of a $187 million settlement with Deutsche Bank, JPMorgan and five other big banks in a complex, multidistrict case claiming that the banks rigged the London Interbank Offered Rate benchmark.

  • Roche Cyrulnik, Kirby, Robbins Geller Vie To Lead Bitcoin Suit
    02/10/2020 | Law360

    Kirby McInerney filed a response in support of interim lead counsel motion highlighting the firm’s experience and rigorous investigation regarding the direct impact on proposed class members in both the bitcoin and bitcoin related futures markets.

  • Antonopoulos Writes to Judge Vouching for Law Team Suing Bitfinex for BTC Manipulation
    01/29/2020 | Cointelegraph

    One of the biggest names in crypto has joined in an ongoing argument about who will lead the class-action suit against Bitfinex and its affiliates over alleged market manipulation leading to Bitcoin’s 2017 bull run. 

  • Roche Cyrulnik, Kirby McInerney Bid For Lead In Bitcoin Suit
    01/28/2020 | Law360

    Kirby McInerney filed a motion for interim lead counsel in the recently consolidated case in the Southern District of New York, highlighting the firm’s in-depth pre-filing investigation of market participants in consultation with experienced experts.

  • Quartet of Bitcoin Manipulation Cases Consolidated in SDNY
    01/27/2020 | Law360

    The Southern District of New York consolidated a case brought by Kirby McInerney and three others that all concern the manipulation of Bitcoin prices by cryptocurrency companies, costing investors hundreds of billions of dollars. 

  • Bitfinex, Tether manipulation lawsuit moves forward
    01/13/2020 | Coingeek

    If Bitfinex and Tether thought their problems would just fizzle out, they’re discovering that luck’s not on their side. According to an update provided by The Block, the two individuals behind a lawsuit accusing the duo of manipulating the price of Bitcoin have updated the suit and are pushing forward with their claims. The amended suit was entered only about a month after the plaintiffs had stated that they wouldn’t be making any changes.

  • Kirby McInerney Settles Moody’s Captive Fraud Case
    01/09/2020 | Captive International

    Moody’s has reached a settlement with New York-based law firm Kirby McInerney after it was accused of underpaying New York State and New York City business taxes between 2002 and 2014. Moody’s is alleged to have mischaracterised its income as premiums to its captive, Moody’s Assurance Company (MAC).

  • Cattle Price-Fixing Cases Consolidated in Minnesota
    07/11/2019 | Law360

    A Minnesota federal court ruled Wednesday that some of the country’s largest meatpacking companies, including Tyson and Cargill, will now face consolidated allegations of colluding to drive down prices of cattle used for beef production.

  • Philly And Citibank Resolve Libor-Rigging Claims in MDL
    06/26/2019 | Law360

    Up next on Judge Buchwald’s docket is the distribution agreement of $182 million worth of deals the exchange-based plaintiffs struck with Bank of America, Barclays, Citibank, Deutsche Bank, HSBC and JP Morgan.

  • Schwab, Investors Ask 2nd Circ. To Revive Libor Claims
    05/24/2019 | Law360

    Charles Schwab Corp. and investors in financial instruments tied to the London Interbank Offered Rate on Friday urged the Second Circuit to reinstate claims against a slew of banks over their alleged manipulation of the benchmark, arguing they have proper antitrust standing and that the litigation belongs in U.S. federal courts.

  • Citi, JPM Get Nod For $182.5M Euribor Settlement Payout
    05/17/2019 | Law360

    A Manhattan federal judge on Friday approved a $182.5 million settlement between JPMorgan Chase & Co., Citigroup and investors who accuse the two megabanks of rigging a key euro rate, signing off also on a roughly $36 million haul for plaintiffs’ firms that brought the antitrust class action.

  • Kirby McInerney Announces Landmark Appellate Decision Against Moody’s in a False Claims Act Case

    Kirby McInerney LLP has obtained a groundbreaking appellate decision against Moody’s Corporation, certain of its affiliates, and Marsh & McLennan Companies, Inc. under the New York State False Claims Act.