Sarah Lochner O'Connor

Sarah O'Connor Photo

Sarah O’Connor focuses on corporate civil and white-collar criminal litigation and government investigations, principally in matters relating to healthcare, finance and banking, director and officer liability, and professional liability.  Sarah has held roles as the sole associate, senior associate, or associate team member in civil and criminal cases and investigations, representing international financial services firms, Big Four accounting firms, Fortune 50 companies, and high-profile individuals in federal and state courts across the country. 

Sarah is a member of the firm’s Generous Associates Committee, which leads the firm’s fundraising efforts each year in the city-wide D.C. Legal Aid Generous Associates Campaign.  Sarah also has dedicated time and effort to pro bono matters, including first-chair representation of an individual against revocation of his parole and representation of a family in a contractual dispute with a contractor.

Representative Experience

Though all cases vary and none is predictive, Sarah’s recent experience includes:

  • Representation of a major financial firm and individual officers and directors in a long-running breach-of-fiduciary-duty suit and trial brought by liquidators alleging more than $1 billion in damages.
  • Sole associate in representation of one of the nation’s largest healthcare companies in multiple government investigations relating to drug pricing and pharmacy benefits manager operations.
  • Representation of one of the nation’s largest healthcare companies against drug-pricing claims in a recent putative class action, in which Sarah deposed multiple proposed class representatives and class certification was successfully opposed.
  • Representation of an international businessman against RICO, Foreign Corrupt Practices Act, and fraud claims, at the trial level and on appeal.
  • Lead associate in representation of a Big Four accounting firm and individual employee witnesses in highly publicized SEC and DOJ investigations and shareholder lawsuits relating to claims of fraud and securities violations by other parties, all arising from a high-profile corporate merger.
  • Sole associate in representation of a credit reporting agency against a putative class action lawsuit alleging violations of the Fair Credit Reporting Act, in which class certification was successfully opposed.



Government Service

Law Clerk, Judge Thomas M. Hardiman, United States Court of Appeals for the Third Circuit, 2011-2012

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