Christopher Moore Sweeney


Washington, D.C.

(202) 912-4828

(202) 861-1905

Chris focuses his practice on construction law, with a focus on litigation and alternative dispute resolution. Whenever possible, Chris also brings his experience to aid clients in avoiding disputes by providing pre-project advice and contract drafting, counseling and claims preparation during projects, and guidance for close-out or claim negotiations when disputes arise.

Prior to joining the legal profession, Chris studied civil engineering, with a focus on structural engineering and construction project management. After graduating from Worcester Polytechnic Institute, Chris worked as a design-build engineer for a structural steel and concrete subcontractor in the Washington, D.C., metro region where he gained experience analyzing plans, specifications, and contracts for substantial construction projects, determining the scope of the subcontract, and preparing cost and time estimates for completion of the subcontracts for sheeting, shoring, and underpinning projects. Leveraging that experience, Chris works closely with his clients to mitigate and avoid potential risks at all stages of a construction project. He has managed claims involving breach of contract, design and latent defect issues, differing site conditions and delay claims, payment and performance bond disputes, mechanic’s liens, and claims for equitable adjustment.

Chris represents clients in litigation and alternative dispute resolution proceedings related to projects ranging from home renovation and repair to the design and construction of multibillion-dollar structures and facilities. His clients include a major pipe fabrication company; owners and EPC contractors in the design, procurement, and construction of LNG combined-cycle power plants; geotechnical engineering and construction companies; and subcontractors involved in the construction of multifamily residential buildings, hospitals, data centers, transit facilities, and museums. Additionally, Chris has served as project counsel for an EPC contractor responsible for the design, procurement, and construction of multiple nuclear power plants in the United States and abroad, working in the client’s offices and providing daily advice on claim preparation and avoidance, contract requirements, and legal strategy relating to minimizing potential losses. In the pre-project phase, Chris has drafted and negotiated numerous construction and service contracts, subcontracts, purchase orders, submittals, and change orders for general contractors, subcontractors, and suppliers.

Chris earned his bachelor's degree in civil engineering, with distinction, from Worcester Polytechnic Institute and his law degree from University of Maryland School of Law. 



Legal 500 Recognizes Six Cozen O’Connor Practice Areas and 13 Cozen O'Connor Attorneys in its 2020 Legal Guide

June 22, 2020

The Legal 500 United States named Cozen O’Connor’s Aviation, Construction, Immigration, Insurance, and Maritime practices and Cozen O’Connor attorneys Scott Bettridge, Stephen Cozen, Raymond DeLuca, Geoffrey Ferrer, Bruce Ficken, David Heffernan, Jeffrey Lawrence, Robert Magovern, Anne Mickey, Jeffrey Mullen, Josh Stein, Christopher Sweeney, and Jeff Vogel to its 2020 Legal Guide.

Fourteen Cozen O’Connor Attorneys Recognized as Washington, D.C., Super Lawyers and Rising Stars

April 20, 2020

Super Lawyers has named 14 Cozen O'Connor attorneys to its 2020 Washington, D.C., Super Lawyers and Rising Stars list.

Cozen O’Connor Welcomes Two More Construction Law Attorneys to its Washington D.C. Office

October 07, 2019

Cozen O’Connor today announced attorneys Christopher M. Sweeney and Alexandra E. Busch have joined its Washington D.C. Construction Law practice, bringing to four the number of lawyers who have joined the fast-growing practice in just the past two weeks.


Now is the Time for Construction Impact Claims [Alert]

June 02, 2020

Chris Sweeney and Alex Busch explain why now could be the perfect moment for contractors to draw a baseline and measure the impacts to date and start measuring future impacts.

Midwest States Allow Resumption of Some Construction Projects [Alert]

May 04, 2020

Sam Mogensen and Chris Sweeney provide updates on recent stay-at-home orders in the midwest and how they are impacting the construction industry.

Construction Resumes in Pennsylvania on May 1 [Alert]

April 27, 2020

Nick Berenato and Chris Sweeney discuss Governor Wolf's plan to reopen the construction industry in Pennsylvania.

What OSHA’s New Guidance Means for the Construction Industry

April 17, 2020

Chris Sweeney explains what the new OSHA guidance means for the construction industry.

States Require Strict Compliance with CDC Guidance for Continued Construction Operations

April 16, 2020

Kelly Trout and Chris Sweeney detail Maryland, New Jersey, and Pennsylvania's recent orders mandating businesses that are operating follow CDC guidelines for preventing the spread of COVID-19.

New Jersey Imposes Additional Requirements on Construction Project Sites [Alert]

April 10, 2020

Nick Berenato and Chris Sweeney discuss New Jersey's latest executive order and what it means for construction project sites.

UPDATE: Several Midwest States Close Non-Essential Businesses – Potential Construction Impacts

April 10, 2020

Chris Sweeney, Stephen Seeger, Jesse Keene, and Alex Busch detail the various stay-at-home orders issued by Midwest states and the impact of each on the construction industry.

Do Not Sign That Lien Waiver [Alert]

April 02, 2020

Chris Sweeney discusses what contractors, subcontractors, and suppliers should do before signing any lien waivers.

Interstate Travel for Construction During COVID-19 Restrictions [Alert]

April 01, 2020

Chris Sweeney discusses options for employees who must cross state lines for work and deal with conflicting stay-at-home orders.

D.C. Closes Non-Essential Businesses, Restricts Sick Employees of Essential Businesses [Alert]

March 31, 2020

Chris Sweeney, Stephen Seeger, Jesse Keene, Kelly Trout, and Alex Busch discuss the D.C. mayor's order closing all non-essential businesses and how it impacts the construction industry.

Maryland and Virginia Close “Non-Essential” Business [Alert]

March 30, 2020

Christopher Sweeney, Stephen Seeger, Jesse Keene, Kelly Trout, and Alex Busch discuss how the Maryland and Virginia executive orders will impact the construction industry.

COVID-19 Construction Update: NJ, NY, DE, and PA Close Businesses

March 27, 2020

Nicholas Berenato, Chris Sweeney, Stephen Seeger, Jesse Keene, and Alex Busch review the executive orders from the governors of Delaware, New York, New Jersey, and Pennsylvania and the impact on the construction industry.

West Coast States Close Businesses Due to COVID-19 [Alert]

March 25, 2020

Chris Sweeney, Stephen Seeger, Jesse Keene, and Alex Busch discuss orders in California, Oregon, and Washington closing businesses due to coronavirus.

COVID-19 Strategies for the Construction Industry

March 20, 2020

Chris Sweeney, Stephen Seeger, and Jesse Keene discuss steps the construction industry can take now to better prepare them for the impact of COVID-19.

Construction Defects-Breach of Contract & Negligence: Same Facts, Alternative Claims

July 01, 2017

Christopher Sweeney contributed an article to AGC discussing the two types of claims contractors typically face: breach of contract and negligence.

Document Everything [AGC Law in Brief]

January 01, 2016

Christopher Sweeney published an article to AGC discussing how regardless of the size and nature of a project, construction is a very document-heavy endeavor.


  • University of Maryland School of Law, J.D., 2010
  • Worcester Polytechnic University , B.S., with distinction, 2006

Awards & Honors

Super Lawyers Rising Star in Washington, DC for Construction Law, 2018-2020

Legal 500 United States "Rising Star" for Construction Law 2020


  • District of Columbia
  • Maryland
  • Virginia
  • U.S. Court of Appeals for the Fourth Circuit
  • U.S. District Court -- District of Columbia
  • U.S. District Court -- Maryland