Gregory H. Koger is a partner in the Washington, D.C. office of Holland & Knight. Mr. Koger focuses his practice on construction law, government contracts and commercial litigation. He represents owners, contractors, subcontractors and engineers in matters involving complex claims and defenses, and routinely advises clients on general regulatory and compliance matters.

Mr. Koger has extensive experience representing national and international clients in various settings ranging from traditional two-party disputes to complex multi-party litigation in state and federal court, arbitration, mediation, administrative proceedings and other forums. His experience encompasses all aspects of risk mitigation and dispute resolution involving delay issues, inefficiencies, differing site conditions, defective work and terminations. He has represented clients in disputes involving power and energy projects, infrastructure projects, large commercial office buildings and multi-family residential projects.

In the area of public contracts, Mr. Koger routinely advises clients on a variety of issues concerning federal, state and local government contracts. His work includes prosecuting and defending complex claims, litigating bid protests and representing clients in matters before the General Accountability Office (GAO), the United States Court of Federal Claims and boards of contract appeals. Further, Mr. Koger counsels clients on compliance issues, audit requirements and other public regulatory matters.

Mr. Koger's transactional and project administration experience spans a broad range of client-oriented legal services. He regularly negotiates and prepares various construction contract documents and other industry-related materials.

Additionally, Mr. Koger serves as an associate editor of Holland & Knight's Construction Group's Newsletter/Alerts, which highlight noteworthy industry-related events and provide valuable insight to industry professionals.

Prior to entering private practice, Mr. Koger served as a judicial law clerk for the Honorable Durke G. Thompson of the Sixth Judicial Circuit of Maryland. Before entering law school, Mr. Koger was a sworn law enforcement officer with the United States Capitol Police in Washington, D.C., and received two letters of commendation for actions while on duty.

Representative Experience

  • Represented engineering, procurement and construction (EPC) contractor in disputes stemming from the conversion of then-existing coal-fired power plant to world’s largest waste coal burning power plant utilizing circular fluid bed technology for power generation
  • Represented engineering, procurement and construction (EPC) contractor in dispute with mechanical contractor concerning faulty installation of piping for combined cycle natural gas-fired power plant
  • Represented prime contractor on a myriad of issues concerning project administration and claims resolution arising from the design and construction of a bio-fuel steam/power co-generation plant on the campus of a U.S. Department of Veterans Affairs (VA) medical facility
  • Represented prime contractor pursuing claims for extended performance and other costs arising from the demolition and construction of U.S. Navy port facility
  • Represented prime contractor pursuing and defending multi-million dollar claims arising from the design and construction of a new municipal combined sewer overflow system
  • Represented major subcontractor in pursuing and defending claims for extended performance arising from the runway rehabilitation and expansion at Baltimore/Washington International Thurgood Marshall Airport 
  • Assisted international infrastructure contractor in the comprehensive drafting and revision of public-private partnership (P3) contract documents

  • Represented prime contractor pursuing and defending claims arising from construction of residential tower in Baltimore, Maryland
  • Represented developer pursuing and defending claims against general contractor arising from construction of simultaneous multi-family mixed-use developments in Maryland and Virginia
  • Represented developer in multi-million dollar dispute concerning design and construction of 417-room hotel resort in Miami Beach, Florida
  • Represented international developer in connection with the resolution of multiple claims stemming from the complete renovation of historic 317-room hotel property in Washington, D.C.
  • Represented mechanical contractor in defense of claims involving water infiltration and mold relating to the construction of high-rise condominium project

  • Represented international prime contractor in the resolution of claims arising from construction activities at Bagram Airfield, Afghanistan
  • Assisted international subcontractor in the preparation of claims arising from the construction of a hotel resort in Baku, Azerbaijan


  • The Catholic University of America Columbus School of Law, J.D.
  • University of Maryland, B.S.
Bar Admissions/Licenses
  • District of Columbia
  • Maryland
Court Admissions
  • U.S. Court of Appeals for the Federal Circuit
  • U.S. Court of Federal Claims
  • U.S. District Court for the District of Maryland
  • U.S. District Court for the District of Columbia
  • American Bar Association, Forum on the Construction Industry
  • American Bar Association, Section of Public Contract Law
  • Associated Builders and Contractors of Metro Washington
  • Associated General Contractors of America, Metro D.C. Chapter
  • Washington Building Congress, Vice-Chairman of the Board, 2019-Present; Treasurer, 2018-2019; Board of Directors, 2016-2018; Board Liaison – Small Business Committee 2018; Board Liaison – Community Service Committee 2017; Board Liaison – Membership Committee 2016; Chairman – Membership Committee 2015; Vice-Chairman - Membership Committee 2014; Membership Committee 2013
  • Maryland State Bar Association, Litigation Section; Construction Law Section; Alternative Dispute Resolution Section
  • District of Columbia Bar Association
  • Court of Federal Claims Bar Association
Honors & Awards
  • Chambers USA – America's Leading Business Lawyers guide, Construction, 2021
  • Washington, D.C. Super Lawyers magazine, 2014-2019


Speaking Engagements