Sedgwick LLP

Harmon L. Cooper

Washington, D.C.
tel: 202.204.1000
fax: 202.204.1001


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Related Practices



Harmon L. (Monty) Cooper practices in the areas of complex civil, environmental, and commercial litigation.  Mr. Cooper serves as a member of a national coordinating defense counsel team for major petroleum companies in multidistrict litigation, which has included defending nuisance, trespass, and failure-to-warn claims.  He has taken and defended numerous depositions, including defending 30(b)(6) depositions of engineers, and has worked with hydrogeologists and engineers to prepare expert reports.  He has also assisted the defense of a major petroleum company against Comprehensive Environmental Response, Compensation, and Liability Act and common law claims seeking contribution for environmental remediation costs.


District of Columbia; Maryland; South Carolina; 4th U.S. Circuit Court of Appeals; U.S. District Court (D.D.C.); U.S. District Court (D. Md.)


J.D. (2004) William and Mary School of Law
M.P.P. (2004) College of William & Mary
B.A. (2000) Georgetown University

Other Distinctions

Mr. Cooper served as an editor of the William and Mary Law Review and was named a Benjamin Rush Scholar.  After law school, he served as a law clerk to the Hon. Patrick Michael Duffy of the U.S. District Court for the District of South Carolina.  Mr. Cooper has been named a “Rising Star” in business litigation by the rating service Super Lawyers and has been honored by the National Bar Association with its “2013 Nation’s Best Advocates: 40 Lawyers Under 40” award.  He has also been named to Lawyers of Color, LLC’s Inaugural Hot List for the Mid-Atlantic Region.