David M. Nadler


Dave Nadler focuses his practice on bid protests; government audits and investigations; the False Claims Act; contract claims, terminations and disputes; government cost, accounting, and pricing issues; suspension and debarment cases; the Foreign Corrupt Practices Act; and government compliance matters, including mandatory disclosure issues.

Dave is consistently rated by Chambers USA and Legal 500 as one of the leading government contracts attorneys in the country. According to Chambers, “clients appreciate that he is ‘extremely responsive, very knowledgeable and provides common-sense advice. He understands how to advise businesses in a way that is practical from both a business and legal perspective.’” Seen as a “[t]rusted adviser,” clients also say that Dave “has great client relation skills, very deep experience and is able to anticipate issues, not just be reactive. He asks the right questions and this allows him to give the best advice.” Dave is recognized by sources as “a master of the subject matter” and as being “among the best government contracts attorneys in the country.”

Dave has been selected by Law360 as a Government Contracts MVP, and under his leadership the firm’s Government Contracts practice was twice selected by Law360 as a Practice Group of the Year. He is also a recipient of the Federal 100 award, which recognizes top executives from the government, academia, and the private sector for their contributions to the government contracts community. Dave also has been selected as a Top Lawyer, Government Contracts, by Washingtonian Magazine.

Government Contracts

Dave represents clients in all facets of federal, state, and local government contracting, including contract formation and performance issues; contract claims, terminations, and disputes; the GSA Schedule; and government cost, accounting, and pricing issues.

His practice also focuses on government compliance matters, including mandatory disclosure requirements, improper business practices, and conflicts of interest. Dave frequently represents companies in bid protests before the Government Accountability Office (“GAO”) and the U.S. Court of Federal Claims, and his work in this area has resulted in or protected billions of dollars in contract awards for clients. He also regularly represents companies in contract claims and dispute litigation before the agency boards of contract appeals and the courts.

Government Investigations and the False Claims Act

Dave represents companies in False Claims Act and qui tam enforcement, including internal investigations, DCAA and other agency audits, and government investigations by agency Offices of Inspectors General and the Department of Justice.

He has handled False Claims Act cases for clients in various industries, including defense, aviation, logistics, information technology, and professional services. Dave also represents companies in suspension and debarment cases and anti-corruption matters, including sanctions proceedings before the World Bank and other development banks.

Dave co-authored the chapter “Threshold Defenses” in The False Claims Act and Government Contracts: The Intersection of Federal Government Contracts, Administrative Law, and Civil Fraud (ABA Book Publishing, 2017).


  • Mandatory Disclosure for Government Contractors
    Briefing Papers (May 2018)
  • Co-Author, The False Claims Act and Government Contracts: The Intersection of Federal Contracts, Administrative Law, and Civil Fraud
    ABA Book Publishing (2017)
  • Report to Congress Paints Difficult Landscape for DCAA
    Law360 (July 31, 2017)
  • It’s Full Steam Ahead for DCAA
    Law360 (February 3, 2017)
  • Critical GAO Bid Protest Deadlines and Timeline
    Mainbrace (January 2017)
  • Measuring DCAA’s Actual Progress on Incurred Cost Proposals
    Law360 (November 17, 2016)
  • World Bank Provides New Insights into Its Sanctions System
    Law360 (June 28, 2016)
  • Top Ten Bid Protest Considerations
    Mainbrace (June 2016, No. 3)

Speaking Engagements

  • Mandatory Disclosure
    West’s Government Contracts Year-in-Review Conference (2008–2020)
  • Beware of the Expanding Reach of the FCA: A Survey of New At-Risk Industries and Emerging Theories of Liability
    American Conference Institute’s 6th Advanced Forum on False Claims and Qui Tam Enforcement (January 29, 2019)
  • What Will the Future Bring? New Theories, New Claims, New Cases
    American Conference Institute’s 5th Advanced Forum on False Claims and Qui Tam Enforcement (January 29, 2018)
  • Claims, Disputes, and Terminations
    PubKGroup Annual Year in Review (2017–2020)
  • The Implied False Certification Theory Post-Escobar
    American Conference Institute False Claims Act and Qui Tam Enforcement Conference (January 30, 2017)
  • DCAA/DCMA Compliance: Cost, Pricing & Audits Forum
    American Conference Institute (June 13, 2016)

News & Views

See all News and Views


  • 2010–2024, Government Contracts Law, listed in Chambers USA
  • 2023, Thought Leader - USA in Government Contracts, listed in Who’s Who Legal
  • 2022, Global Leader in Government Contracts, listed in Who’s Who Legal
  • 2021–2022, listed in Capital Pro Bono Honor Roll
  • 2015–2021, 2023–2024, listed in The Legal 500 United States
  • 2018, Top Lawyers, Government Contracts, listed in Washingtonian Magazine
  • 2017, Government Contracts MVP, listed by Law360
  • Federal 100 Award



  • American Bar Association
  • Court of Federal Claims Bar Association
  • District of Columbia Bar Association
Professional Activities

Dave previously was a senior attorney with the Department of the Navy, Naval Sea Systems Command (“NAVSEA”), and a trial attorney with the Navy Litigation Division in Washington, D.C.

Dave is a member of the advisory board of The Government Contractor, and serves as co-chair of the ABA Procurement Fraud & False Claims Committee. He previously served as a vice chair of the ABA Accounting, Cost & Pricing Committee. He is also a past president of the Boards of Contract Appeals Bar Association.



  • District of Columbia
  • U.S. District Court - District of Columbia
  • United States Court of Appeals for the Federal Circuit
  • United States Court of Federal Claims
  • Virginia


  • Brooklyn College, BA
  • Temple University Beasley School of Law, JD