Kristen A.Lejnieks


Washington + 1.202.879.3703

Kristen Lejnieks is a trial lawyer and passionate advocate who represents clients in complex civil litigation and white collar matters. Kristen has in-depth experience in high-stakes parallel and multijurisdictional civil proceedings as well as government-facing litigation and investigations. Kristen has leveraged her deep substantive knowledge of discovery practice and technology to efficiently litigate cross-border disputes around the world, including in Japan, the United Kingdom, Mexico, Australia, South Africa, China, and Mozambique.

Kristen is an experienced antitrust litigator who has defended clients against price-fixing, market allocation, product-hopping, and sham litigation claims. She has defended several antitrust merger challenges, including the successful defense of Cabell Huntington Hospital's acquisition of St. Mary's Medical Center from an FTC challenge and the defense of Electrolux Corporation at trial regarding the DOJ's challenge to the proposed acquisition of General Electric's appliance business.

Kristen has represented corporate clients and individuals in all stages of criminal investigations and defense. She has represented clients before the DOJ and the SEC and has experience with investigations involving fraud, corporate disclosures, books and records violations, restatements, internal controls, and the FCPA.

Kristen maintains an active pro bono practice and heads up the Washington Office's Housing Right to Counsel Project, a joint effort between the D.C. Bar Pro Bono Center and legal service providers in the District to reduce subsidized housing evictions by increasing access to pro bono services. She also serves on the board of the Council for Court Excellence.


  • Union Pacific Railroad defends against various conspiracy claims by OxbowJones Day is defending Union Pacific Railroad Company in an action pending in DC District Court involving alleged conspiracy claims relating to coal and petroleum coke shipments.
  • Electrolux attempts acquisition of GE appliances businessJones Day represented Swedish appliance maker AB Electrolux as antitrust and labor counsel in its attempted $3.3 billion acquisition of the appliances business of General Electric.
  • Yazaki defends against automotive wire harness antitrust class actionsJones Day represents Yazaki North America and Yazaki Corporation in connection with numerous antitrust class action complaints alleging that Yazaki and other auto parts manufacturers violated the Sherman Act by engaging in bid-rigging and price-fixing in sales of automotive wire harnesses and related products.
  • Jones Day obtains presidential commutation reducing client's sentence for nonviolent drug-related offenses from 20 years to 24 monthsOn Thursday, January 19, 2017, the Office of Pardon Attorney notified the Jones Day team representing Lawrence Honore that President Obama had commuted Mr. Honore's sentence from 240 months to 24 months.
  • National Security Archive and White House reach agreement for restoration of millions of missing Bush White House emailsOn behalf of the National Security Archive, Jones Day filed a Complaint in September 2007 in the United States District Court for the District of Columbia seeking orders to restore millions of emails deleted from White House servers during the Bush Administration.
  • FCPA monitor appointed pursuant to DOJ settlementPeter Romatowski, supported by a team of Jones Day attorneys, serves as the FCPA monitor selected by the company and approved by the Deputy Attorney General pursuant to a $30 million settlement and deferred prosecution agreement with the DOJ and SEC to resolve an investigation of payments to government officials in Africa and South America.
  • Yazaki defends against antitrust investigationsJones Day represented Yazaki Corporation and its U.S. subsidiary, Yazaki North America, Inc. ("YNA"), in connection with a criminal antitrust investigation by the U.S. Department of Justice into alleged bid rigging and price fixing related to automotive wire harnesses and certain so-called "related products," carried out at the same time as similar investigations by foreign antitrust enforcers in Japan, Europe and Canada.
  • National Coalition for History files amicus brief before D.C. Circuit arguing novel FOIA issueIn National Security Archive v. CIA, No. 12-5201, Jones Day represents The National Coalition For History ("The Coalition") as amicus curiae before the U.S. Court of Appeals for the D.C. Circuit.
  • Jones Day secures guardianship in highly contested caseJones Day represented an aunt and uncle in seeking guardianship of their three young nieces. 
  • Maternal great-aunt is granted continued custody of 14 year old she has cared for since birth and permission to move out of state with childThrough its partnership with the Children's Law Center the firm became involved in representing a maternal great-aunt in a custody dispute over a 14 year old child the great-aunt had cared for since birth.
  • Jones Day lawyers successfully assisted a West African immigrant in vacating his conviction in Virginia state court for a crime he was legally incapable of committingJones Day lawyers successfully assisted a West African immigrant in vacating his conviction in Virginia state court for a crime he was legally incapable of committing.
    • 9/11/2023 - 9/15/2023
      National Institute for Trial Advocacy and Freedom House Training in Zanzibar, Tanzania - Effective Case Management and Trial Advocacy Skills
    • 11/19/2020
      CLE: Practical Approaches to Legal Holds & Spoliation
    • 03/19/2020
      CLE - Legal Project Management for Litigation
    • 4/15/2019
      CLE - Role of Social Media in E-Discovery
    • 10/27/2017
      CLE - Depositions: An Interactive Look
    • 07/15/2015
      CLE & Panel - International Blocking Statues and Privacy Laws
    • 6/24/2014
      CLE - Cross Border E-Discovery
    • 05/21/2014
      CLE - International Issues in Discovery: Japan & China
    • 04/17/2013
      CLE - Emerging Issues in E-Discovery: Search Term Selection & Testing