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Tirzah S. Lollar

Tirzah S. Lollar Partner, Government Investigations & White Collar Criminal Defense

Tirzah's principal area of practice involves white collar criminal defense, government investigations, and litigation and client counseling arising from such matters. Her practice involves trial work, grand jury work, and defending clients in government investigations and other proceedings related to the False Claims Act, government contracts and procurement fraud, the Foreign Corrupt Practices Act, and similar global anti-corruption legislation, tax fraud, and antitrust offenses, as well as in other types of civil, criminal, and administrative disputes and inquiries.

She regularly represents clients before relevant enforcement authorities, including the Department of Justice, Securities and Exchange Commission, and Defense Criminal Investigative Service. 

Experience Highlights

  • (Fed. Cl.) — Defended a government contractor in a $1.4 billion fraud trial against the United States that resulted in judgment for the government contractor on all but one claim, which resulted in a low value negotiated settlement
  • (E.D. Va.) — Defended a global supplier of communications and security products in qui tam action regarding its dealings with a government customer that resulted in favorable settlement at a small fraction of the United States’ original damages claim
  • (D.C. Cir.); (D.D.C.) — Represented a government contractor in qui tam action in which V&E successfully obtained two writs of mandamus vindicating the contractor’s claim of attorney-client privilege over materials created during an internal investigation led by company lawyers; subsequently won summary judgment on all counts
  • Conducted FCPA review of a U.S. pipeline company’s proposed relationships with third parties in connection with a more than $3 billion project in a Latin American country
  • Conducted an internal investigation for a telecommunications company regarding potential FCPA violations in connection with the company’s operations in a South American country

False Claims Act/Qui Tam Litigation

  • (E.D. Va.); (Fourth Circuit, U.S. Supreme Court) — Defending a government contractor in qui tam action in which, after dismissal by trial court and reversal by circuit court, the Supreme Court ruled 9-0 in favor of contractor that Wartime Suspension of Limitations Act does not suspend statute of limitation for civil fraud actions, including those brought under the False Claims Act
  • (E.D. Mich.) — Defending government contractor in False Claims Act case brought by the government alleging violations of Truth in Negotiations Act in price negotiations for alleged failure to disclose current cost or pricing data and claiming damages of potentially upwards of $400 million
  • (S.D. Tex.); (Fifth Circuit) — Defended a global supplier of telecommunications products in qui tam action regarding its provision of services to schools and libraries under the federal E-Rate program; although the district court denied a motion to dismiss, the Fifth Circuit reversed and held on an issue of first impression that funds from the E-Rate program are not “provided by” the United States for purposes of the False Claims Act
  • (E.D. Va.); (Fourth Circuit) — Obtained dismissal of qui tam against a government contractor on grounds that alleged contractual deficiencies alone do not create False Claims Act liability; the Fourth Circuit affirmed the dismissal in a published opinion that has been cited in countless False Claims Act cases since
  • (C.D. Ill.) — Successfully defended a government contractor in qui tam action where a relator sought more than $600 million in damages and penalties; relator voluntarily dismissed the suit after V&E won a parallel contract interpretation suit against the Army in which the Army adopted the contractor’s interpretation of the contract, which preempted relator’s claims
  • (S.D. Tex.) — Represented an individual in a large mortgage FCA case brought by DOJ in which the individual was charged with violating FIRREA by making false statements and certifications to the Department of Housing and Urban Development
  • (D.C. Cir.); (D.D.C.) — Won summary judgment in this non-intervened qui tam regarding morale, welfare, and recreation services; affirmed on appeal in first post-Escobar case in D.C. Circuit
  • (D.D.C.) — After meetings and written advocacy, persuaded the government not to intervene in this qui tam suit regarding the handling of government property during the war in Iraq; after the government declined to intervene, the relator dismissed the case
  • (D.Colo.) — Representing oil and gas company in government investigation of allegations of False Claims Act violations based on natural gas royalty accounting and reporting 

Foreign Corrupt Practices Act

  • Representing ten senior officers and employees of a commercial real estate development company in large scale FCPA investigation by the DOJ and SEC regarding permitting and licensing in a Latin American country
  • Conducted internal investigation for a global manufacturer and service provider for the drilling industry regarding potential FCPA compliance violations in a North African country
  • Conducted an internal investigation for an international oil company regarding potential FCPA compliance violations in connection with company’s operations with a national oil company in a Middle Eastern country
  • Represented senior employees of a global car manufacturer in multi-national FCPA investigation by DOJ and SEC regarding the company’s sales practices
  • Conducting FCPA reviews of third-party representatives throughout the world on behalf of a large international drilling contractor
  • Represented a U.S. company during pre-sale anti-corruption due diligence conducted by a prospective buyer and its auditors to facilitate the purchase of the U.S. company
  • Represented an individual before the Office of Institutional Integrity of the Inter-American Development Bank (IDB) in a corruption matter

Government Investigations & White Collar

  • (E.D. Tex.) — Representing a government contractor in Anti-Kickback Act action filed by the United States
  • Representing a senior official of a Latin American shipping company in industry-wide price-fixing investigation by DOJ and other international competition authorities
  • Successfully represented a high-wealth individual in a sensitive criminal investigation that resulted in no action by DOJ

Pro Bono Cases

  • (D.D.C.) — Three-day jury trial in federal district court in a pro bono case under Americans with Disabilities Act and D.C. Human Rights Act for an individual who was denied entry to a popular D.C. nightclub because she was wearing a medical device
  • (D.D.C.) — Successfully represented day laborers seeking unpaid wages and benefits from former employer in pro bono case under Fair Labor Standards Act and D.C. Wage Laws (monetary damages)
  • (4th Cir) — Represented a former permanent legal resident in successful pro bono challenge to the validity of an immigration regulation

Contact Details


T +1.202.639.6670
F +1.202.879.8960
2200 Pennsylvania Avenue NW
Suite 500 West
Washington, DC 20037-1701
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Tirzah's Practices

  • University of Virginia School of Law, J.D., 2004 (Virginia Tax Review)
  • University of Virginia, B.A., Anthropology with distinction, Spanish minor, 1999
  • Attended University of Seville, 1998
  • Admitted to practice: Virginia; District of Columbia; United States Supreme Court; U.S. Court of Appeals for the Fourth Circuit; U.S. Court of Appeals for the D.C. Circuit; U.S. District Courts for the Eastern and Western Districts of Virginia; U.S. District Court for the District of Columbia; U.S. District Court for the Southern District of Texas; U.S. District Court for the Central District of Illinois; U.S. District Court for the Eastern District of Michigan; U.S. Court of Federal Claims
    • Paralegal Specialist, U.S. Department of Justice, Criminal Division, Office of International Affairs, 1999–2001
    • Law clerk to The Honorable James C. Cacheris, U.S. District Court for the Eastern District of Virginia, Alexandria Division, 2004–2005
      • Law360, Rising Star, 2016
      • Work recognized in Financial Times' feature, Most Innovative North American Law Firms, 2015
      • Selected to the Washington DC Rising Stars list, Super Lawyers (Thomson Reuters), 2013 and 2014
      • Washington Lawyers’ Committee for Civil Rights and Urban Affairs, Outstanding Achievement Award, June 16, 2009
      • Trustee: Washington Lawyers’ Committee for Civil Rights and Urban Affairs
      • Member: Public Contract Law Section, American Bar Association