People / Kathryn Muldoon Griffin
Katie Griffin

Kathryn "Katie" Muldoon Griffin

Partner | Northern Virginia Office Managing Partner

Kathryn (Katie) Griffin represents contractors across a range of industries on federal, state, and private projects involving construction, government contracts, and white collar issues. She has experience in representing construction, engineering, and technology firms in resolving contract claims and disputes with the federal government and prime-subcontractor disputes on federal and federally-funded projects.

Katie works with national and international construction and engineering firms on major contracting issues including defective specifications, differing site conditions, constructive changes, contractor performance evaluations, and liquidated damages. Clients rely on her depth of experience in claim analysis and presentation and effectiveness in working with technical experts, scheduling experts, and cost and pricing experts.

Katie has extensive experience representing defense contractors with respect to government cost accounting issues, covering among other issues government proposed disallowances of executive compensation and broad-based employee compensation (including the costs associated with health and welfare benefits).

She also has experience assisting government contractors with a full spectrum of other contracting issues including those involving audits and investigations and procurement fraud allegations. Her experience includes assisting contractors in developing and evaluating their ethics and compliance programs, as well as representing contractors who have been suspended or proposed for debarment. She is also experienced in the conduct of internal investigations and employee interviews pertaining to compliance issues and in support of independent monitor engagements.

Katie co-taught a Cost & Pricing course as an adjunct professor at George Washington University School of Law from 2014-2020. She has published on several aspects of government contracting, with a recent focus on decisions and rules regarding contractor performance evaluations. She served as the immediate past President of the Board of Contract Appeals Bar Association (BCABA) in 2018; and served as the BCABA President and Vice President in 2017 and 2016, respectively. She was recently named to DCA Live’s 2022 Emerging Women Leaders in Private Practice in Washington, D.C.

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  • American Bar Association
  • California Bar Association
  • Virginia Bar Association
  • Board of Contract Appeals Bar Association, 2018 Immediate Past President, 2017 President, 2016 Vice President, 2015 Board of Governors Member
  • Recognized in Chambers USA, Chambers and Partners, in Construction, 2023-2024
  • "Cost Allowability," instructor, Federal Publications, ongoing course.
  • "The Masters Institute in Cost Accounting Standards," instructor, Federal Publications, ongoing course.
  • “Caught Between Tort and Contract: Gaps in the Economic Loss Doctrine,” co-author, American Bar Association Forum on the Construction Industry 2 X 4 X10 Newsletter, Fall 2020.
  • “Project Delay…What’s Next?,” co-author, ENR Law & Risk Management Today II, August 31/September 7, 2020.
  • "Recent Developments in Construction Law," panelist, ARTBA Annual Law & Regulatory Forum, 12th Annual Law & Regulatory Forum, June 3, 2020.
  • "Kicking Down the Doors of Construction Law—How Three Talented Women Thrive in a Male-Dominated Industry," panelist, U.S. Court of Federal Claims Judicial Conference, November 14, 2019.
  • "Practice Tips for Construction Litigation," moderator, ABA Annual Meeting, August 26, 2019.
  • “Federal Circuit Applies the Christian Doctrine to Miller Act Bonds,” co-author, ABA Division 10, 2x4x10, Summer 2019.
  • "Legal Issues and Case Law Updates," Federal Publications, speaker, 2018 Government Contract Accounting and Regulatory Update, October 17, 2018.
  • "Government Contracts: Understanding Pricing and Accounting Requirements," speaker, DC Bar Association, April 4, 2018.
  • “Performance Evaluations: Leveling the Playing Field,” co-author, The Procurement Lawyer, Vol. 53, No. 1, Fall 2017.
  • “Challenging Negative Performance Evaluations: Confronting Hurdles at ASBCA and COFC,” co-author, The Procurement Lawyer, Vol. 51, No.1, Fall 2015.
  • "Executives in DCAA Crosshairs—New Limits on Executive Compensation," panelist, Washington Metropolitan Area Corporate Counsel Association, September 2013.
  • "CPM Scheduling on Complex Projects," panelist, ASCE Texas Section Fall Conference, September 2013.
  • “A Primer for Proving Compensation Cost Reasonableness,” co-author, Federal Contracts Report, August 2012.


J.D., Pepperdine University School of Law, 2006

B.S., University of Virginia, 2002




Court Admissions

U.S. Court of Appeals for the Federal Circuit

U.S. Court of Federal Claims

U.S. District Court for the Southern District of California

U.S. District Court for the Eastern District of California

Supreme Court of Virginia

Press Release
Haynes Boone Earns Most Rankings for Lawyers and Practices in Firm History in Chambers USA 2024
June 06, 2024

Haynes and Boone, LLP achieved its most robust rankings ever in Chambers USA 2024 (Chambers and Partners), with 89 lawyers and 35 practices ranked from its 16 U.S. offices. Chambers ranks lawyers and practices based on thousands of interviews with leading practitioners and clients. Ranking criteria include technical legal ability, professional conduct, client service, commercial astuteness, dilige [...]