Attorneys At Law
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Owen S. Walker


Tysons Corner Office
8000 Towers Crescent Drive, Suite 900
Tysons Corner, VA 22182
Phone: (703) 847-6300
Fax: (703) 847-6312

Mr. Walker represents clients in the government contracts and construction industries. While Mr. Walker's primary focus is on the resolution of disputes through negotiation, he has successfully represented clients in a variety of forums including federal and state courts, before the boards of contract appeals, and in arbitrations and mediations.

Mr. Walker’s government contracts experience spans over a wide range of issues, including preparation of certified claims, compliance with Buy American and other domestic preference requirements, audits, bid protests and other procurement issues, terminations for default and terminations for convenience, debarment and suspension, internal investigations, and False Claims Act matters.

Mr. Walker’s construction practice includes the representation of regional, national and international contractors, owners, and engineering professionals on legal matters, including contract formation, claim entitlement and liability, contract termination for convenience and default, defective specifications, quantification of damages, delay and critical path scheduling, design-build and joint venture issues, mechanic's liens, and performance and payment bond claims.

Mr. Walker has also represented clients in commercial disputes involving trade secrets, non-disclosure agreements, and teaming agreements.


American University Washington College of Law (J.D., May 2007)

University of California Santa Barbara (B.A., Environmental Studies, May 2001)

Bar Admissions

Commonwealth of Virginia, 2007

District of Columbia, 2012

Court Admissions

Supreme Court of Virginia

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

U.S. Court of Federal Claims

Professional Memberships

Washington Building Congress, Vice-Chair, Programs and Education Committee.

American Bar Association, Forum on Construction Law, Member, Division 13 Government Construction, Technology Liaison.

Board of Contract Appeals Bar Association.

Associated General Contractors of America.

Virginia State Bar, Construction Law & Public Contracts.


Construction Law Handbook, (Aspen Publishers, 2017), co-author of Chapter 22 - Obtaining Time Extensions.

Discovery Deskbook for Construction Disputes, (American Bar Association, Forum on Construction Law, 2nd ed. 2015), co-author of Chapter 2 - Prelitigation Discovery.

Differing Site Condition Claims: What Lies Below the Surface of Exculpatory Clauses or Other Disclaimers?, 48 Procurement Lawyer 4, Summer 2013.

Limitations of Actions-Contract and Tort Claims, inContractual Risk Transfer III.E.1-23 (International Risk Management Institute ed., 2010).

Analyzing and Avoiding Risks in Construction Contracts, inContractual Risk Transfer XVII.V.1-16 (International Risk Management Institute ed., 2010).

Recent Speaking Engagements

Construction Schedule Delays, Federal Publications, annually since April 2017.

Government Contracts Basics: Claims and Disputes, D.C. Bar Association CLE Program, February 2018.

Performing and Subcontracting Under Federal Government Contracts, D.C. Bar Association CLE Program, September 2017.

Cost Allowability, Federal Publications, Triannual Course, August 2017.

Recent Trends in DCAA Audits, 2017 Jackson Lewis Government Contractor Employment Law Symposium, March 2017.

Contracts can Make or Break a Project - Comparison of Industry Form Contracts (AIA v. Consensus), Virginia Bar Association, Construction and Public Contracts Law Seminar, November 2016.

What Contractors & Their Attorneys Need to Know About Terminations of Construction Contracts - Liabilities, Challenges and Recovery, Associated General Contractors and ABA Forum on Construction Law Webinar, June 2016.

Contract Terminations – Liabilities, Challenges and Recovery, Federal Publications, Webinar, September 2015.

Representative Matters

Successfully defended against an $80M contract dispute during a five day bench trial resulting in a denial of all claims against our client in Parsons Government Services, Inc. v. Bechtel National, Inc., 2016 WL 8653327 (Va.Cir.Ct.). 

Prevailed against a $14M claim on a summary judgment motion on behalf of our client in Generali-U.S. Branch v. Lachel & Assocs., Inc., No. 3:16-CV-595-DJH, 2017 WL 6999998 (W.D. Ky. Aug. 7, 2017).

Represented a California-based technology company in five separate appeals wherein the government claimed a total of $1.4M arising out of incurred cost audits.  The appeals were pending in the Armed Services Board of Contract Appeals, and one in the United States Court of Federal Claims.  Utilizing a novel legal theory, successfully negotiated a settlement for all five of the pending appeals resulting in a positive recovery for our client.

Obtained a $4M recovery for client under a termination settlement proposal against the National Institute of Standards and Technology.  The matter involved Buy American compliance issues.  Defended against and successfully negotiated several lower tier subcontract lawsuits filed in U.S. District Court, District of Maryland.  

Successfully resolved claims against a geotechnical design engineer in a multi-party dispute with the University of South Carolina pertaining to the Founders Park Baseball Stadium.

Prevailed in three day arbitration involving claims under Maryland’s mechanic’s lien, and construction trust statutes in addition to breach of contract claims. Obtained an award of $540,000, including an award for attorneys’ fees under Maryland’s Prompt Payment Act.

Presented oral argument to the Court of Special Appeals of Maryland in the matter Aris Corporation, et al. v. Monarc Construction, Inc., (No. 282, May 3, 2011) and obtained a favorable decision.

Advised the Government of the Cayman Islands on a $100M design-build project, including preparation of contract documents and was extensively involved in resolving contract-based disputes and with change order management during the project.

Drafted a design-build contract for construction of a major military installation in Kabul, Afghanistan.

Drafted and negotiated a $20M design-build contract for the construction of an evidence control facility in Washington, D.C. and provided advice regarding contract administration during the project.

Drafted and negotiated a $7.6M contract on behalf of a general contractor for the construction of a public library in Prince Georges County, Maryland and advised on change order management and contract administration during the project.