People / Christos Papapetrou
Christos Papapetrou

Christos G. Papapetrou

Christos Papapetrou has achieved national recognition for his work on behalf of a wide array of clients who have consistently turned to him for some of their most challenging commercial litigation and white collar matters. Christos’s defense of these clients has earned in him a place on the Benchmark Litigation 40 and Under Hot List, published by Euromoney Institutional Investor PLC since 2018 and recognition as a “Rising Star” from 2015 to 2018 and a “Super Lawyer” from 2020 to 2021 in the New York Super Lawyers and Rising Stars directory, published by Thomson Reuters.

Christos represents clients across a diverse range of legal areas, including complex civil litigation, criminal investigations and prosecutions, regulatory enforcement proceedings, and internal investigations. He has represented individuals and companies in state and federal trial and appellate courts throughout the country, including having authored dozens of appellate briefs in state and federal courts nationwide, including several federal courts of appeal and state supreme courts.

Christos has handled matters involving contract disputes, securities and consumer class actions, employment disputes, breaches of fiduciary duty, securities fraud, financial and accounting fraud, insider trading, public corruption, cybercrime, and trade secrets. He has represented individuals and companies in connection with investigations by the Department of Justice, the Securities and Exchange Commission, the Financial Industry Regulatory Authority, the U.S. Commodities Futures Exchange Commission, as well as various state criminal and regulatory authorities.

Christos also has extensive experience in complex cross-border matters and often advises clients on issues that arise in international cases and investigations. His clients often call upon him in crisis environments to craft effective solutions and to help identify critical governance and regulatory risks.

Christos is also an active member in numerous New York Bar related organizations―including serving as a Trustee of the Federal Bar Council and as co-Membership Chair of the Federal Bar Council’s Inn of Court.

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White-Collar Criminal and Civil Matters

  • Represented an individual in connection with the New York District Attorney’s and New York Attorney General's Office’s investigations regarding the Trump Organization.
  • Represent an employee at a major public media company in connection with a federal prosecution in the Eastern District of New York involving alleged violations of the Computer Fraud and Abuse Act and wire fraud related to information obtained through alleged improper means from a competitor.
  • Represented the CEO of a broker-dealer charged with securities and wire fraud in both his criminal prosecution in New Jersey federal court and SEC enforcement matter. Ultimately negotiated a resolution that resulted in client serving less than 1 day in jail, with no additional criminal fine or punishment.
  • Represented a portfolio manager at a hedge fund charged with securities and wire fraud in the Eastern District of New York related to an alleged scheme to defraud certain bondholders during a consent solicitation and tender offer process.
  • Represented defendant in both federal criminal prosecution and SEC enforcement case in the Southern District of New York who was charged with insider trading in connection with information that was obtained from his son, who worked at an investment banking firm. After pleading guilty, the client was sentenced to probation and the SEC enforcement action was resolved with no additional financial penalty.
  • Represented an individual charged with securities fraud and investment advisor fraud in the Southern District of New York; after pleading guilty and cooperating with the U.S. Attorney’s Office, the client was sentenced to probation.
  • Represented the Board of Directors of an S&P 500 company in an internal investigation related to alleged misconduct of senior managers and advised the Board in addressing the issues in a crisis environment.
  • Represented an individual who worked at a French financial institution in a federal criminal investigation concerning alleged violations of U.S. sanctions related to Libya.
  • Represented the chief executive officer of a public company in an internal investigation related to alleged misconduct and ultimately assisted in negotiating the executive’s separation from the company.
  • Represented a trader in a FINRA investigation for an alleged violation of rules related to municipal bond trading, which ultimately resulted in FINRA dropping its investigation into both the employee and financial institution.
  • Represented a foreign citizen, senior executive at a European financial institution in a federal criminal investigation concerning alleged violations of U.S. sanctions related to Iran.
  • Represented a pharmaceutical company executive in connection with an SEC investigation regarding the scope and accuracy of public company financial disclosures related to the profitability of certain drugs.
  • Represented a New York State agency in a federal investigation concerning the mechanics of a bidding process structure to disburse federal grant money.
  • Represented a witness who testified at an S.D.N.Y. trial regarding public corruption involving New York state politics.
  • Represented a hedge fund executive in SEC and CFTC investigations concerning the fund’s valuation practices and disclosures for complex derivative products.
  • Represented a whistleblower at a global financial institution in connection with his reporting of alleged misconduct to the SEC; his information led the SEC to a major settlement with a global financial institution and a whistleblower award to the client.

Complex Civil Litigation Matters

  • Represented Expedia in a lawsuit against an advertising agency concerning a dispute over unpaid invoices related to the Hertz bankruptcy.
  • Represented Eros International, a media and entertainment company, in a federal securities class action alleging violations of Section 10(b) and 20(a) of the Exchange Act.
  • Represented Sterling Bancorp in a federal securities class action alleging violations of both the Exchange Act and Securities Act.
  • Represented the Chicago Stock Exchange in several high-frequency trading lawsuits filed in the U.S. District Court for the Southern District of New York, which were based on the best-selling book, Flash Boys. After assisting in obtaining dismissals of the putative class actions filed against the Chicago Stock Exchange in the District Court, represented the Chicago Stock Exchange before the U.S. Court of Appeals for the Second Circuit.
  • Represented a national furniture company in a federal lawsuit in S.D.N.Y. filed by one of its technology vendors alleging a breach of their commercial contract.
  • Represented a real estate company in both the S.D.N.Y. and Second Circuit Court of Appeals in a civil dispute against T-Mobile. Initially retained for the appeal, Virginia Properties had been sanctioned by the district court for engaging in alleged discovery abuse. The Court of Appeals reversed the District Court in its entirety, concluding that defendants had misconstrued the discovery record to support sanctions, and remanded for further proceedings. The case resolved favorably to our client.
  • Previously served as legal strategy counsel for Philip Morris USA and its parent Altria Group in connection with over a dozen jury and bench trials in federal and state courts in West Virginia, Florida, New York, California, Oregon, Missouri and Massachusetts. Sample cases included:
    • A damages-only retrial in Florida of a 2009 jury verdict, which was, at the time, the largest verdict awarded to a single individual in any personal injury lawsuit ($300 million) in the United States. Initially retained on the appeal and the verdict was ultimately reversed because the jury had, in part, disregarded the instructions. On the retrial, which was limited to damages only, the jury awarded less than 5% of the original verdict.
    • A novel mass action case in West Virginia state court aggregating the products liability and punitive damages claims of over 600 plaintiffs.
    • A class action brought in Missouri state court alleging fraud in connection with the marketing of Lights cigarettes. Plaintiffs sought over $1 billion in compensatory damages and several times that in punitive damages. A mistrial was declared after the jury was unable to reach a verdict.

Pro Bono Matters

  • Represent an individual currently in a death penalty habeas petition in federal court in Alabama primarily concerning a Batson challenge to his conviction.
  • Represented a civil rights plaintiff who challenged New York State’s denial of his right to medical treatment for his PTSD while he was incarcerated. Represented appellee in the State’s interlocutory appeal of district court’s denial of qualified immunity to individual defendants. The case was ultimately resolved favorably before trial.
  • Represented plaintiffs (a father and son) in a section 1983 civil rights trial in the E.D.N.Y. against the City of New York alleging the use of excessive force during father’s arrest. Verdict in favor of the son against a defendant police officer.

*Some of these matters were handled by Christos prior to joining Haynes Boone.

  • New York Council of Defense Lawyers
  • Federal Bar Council: Trustee (2022-Current); Awards Committee (2019-2020); Committee on Sentencing and Alternatives to Incarceration; Planning Committee for the Federal Bar Council's 2021 Rule of Law Symposium
  • Federal Bar Council Inn of Court: member of the Executive Committee; Co-Membership Chair of the Inn of Court
  • Historical Society of the New York Courts
  • New York Bar Association: member of the Federal Rules Committee
  • New York City Bar Association
  • Included in Benchmark Litigation’s 40 and Under Hot List, published by Euromoney Institutional Investor PLC from 2018 to 2021.
  • Named a “Rising Star” from 2015 to 2018 and a “Super Lawyer” from 2020 to 2022 in the New York Super Lawyers and Rising Stars directory, Thomsopn Reuters. *No aspect of this advertisement has been approved by the Supreme Court of New Jersey. See Award Methodology.


J.D., Fordham University School of Law, 2008, cum laude, Editor in Chief, Fordham Urban Law Journal (2007-2008)

B.A., History and Philosophy, Boston College, 2005, magna cum laude, Phi Beta Kappa


Law Clerk to the Honorable Loretta A. Preska, U.S. District Court for the Southern District of New York, 2010-2011

Law Clerk to the Honorable Peter G. Sheridan, U.S. District Court for the District of New Jersey, 2009-2010




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Press Release
11 Haynes Boone Lawyers Featured in 2022 New York Super Lawyers, Rising Stars Directories
October 07, 2022

Eleven Haynes and Boone, LLP’s lawyers are included in the 2022 New York Super Lawyers and Rising Stars directories. Published annually by Thomson Reuters, Super Lawyers is a rating service of outstanding lawyers who have attained a high degree of peer recognition and professional achievement. The selection process includes independent research, peer nominations and peer evaluations of lawyers in [...]