Greg is an award-winning litigator and trial lawyer who represents Fortune 500 companies at trial and on appeal in courts around the country. A Marine veteran, Greg received his bachelor’s degree in economics from Yale University and graduated cum laude from Harvard Law School.
Greg’s represents clients in a wide array of practice areas, including complex commercial disputes, environmental litigation, products liability, insurance recovery, intellectual property, antitrust, and tort. Greg has completed nearly a dozen trials, argued appeals in both federal and state court, and represented clients in international commercial arbitration.
Greg also maintains a robust pro bono appellate practice, representing clients in courts of appeals and the Supreme Court.
Following law school, Greg served for six years on active duty in the United States Marine Corps. He graduated in the top 1% of his class at The Basic School and was the honor graduate from Naval Justice School, where he also received the New York City Bar Association’s Trial Advocacy Award. Greg’s efforts as a defense counsel—including five acquittals in a five-month span—led to his selection as the Marine Corps Defense Counsel of the Year.
At Yale, Greg was a four-year letter winner in lacrosse and received All-Ivy and All-New England honors. At Harvard Law School, Greg received the Irving Oberman Memorial Prize for legal history writing.
Prior to joining McGuireWoods, Greg clerked for Judge D. Michael Fisher of the U.S. Court of Appeals for the Third Circuit.
In January 2022, achieved a nine-figure international arbitration award on behalf of a mining-focused investment firm after a two-week evidentiary hearing.
Represents The Boeing Company in a nationwide RICO class action currently on appeal in the Fifth Circuit.
Retained by Yahoo!/Verizon approximately 80 days before a jury trial to represent it in a billion dollar contract dispute with Mozilla regarding search-engine revenue. Shortly before trial, the case settled.
Trainum v. Rockwell Collins, Inc., 765 F. App’x 514 (2019) (argued) - Successfully represented an aeronautical communications company in the Second Circuit after McGuireWoods secured a highly favorable defense verdict at trial.
Representing copper-mining giant Asarco in various CERCLA cost-recovery and contribution actions throughout the country.
Represented Ford Motor Company in a long-running tax dispute before the Supreme Court of Virginia.
Represented Caterpillar Inc. in a complex product liability case in the Southern District of Florida.
Represented a medical marijuana company in an administrative appeal before the Virginia Court of Appeals. No. 1070-19-2 (argued).
Selected for inclusion in Best Lawyers: Ones to Watch, Litigation - Securities, 2021-2023
Selected for Inclusion, Daily Journal, “Top Verdicts,” 2020
Law360 Quotes Tony Tatum and Gregory DuBoff on Prejudgment Interest on Insured Losses
June 3, 2022
More Than 100 McGuireWoods Attorneys Recognized as ‘Ones to Watch’ By Best Lawyers
August 19, 2021
McGuireWoods Team Earns Recognition in Los Angeles Daily Journal’s ‘Top Verdicts’
February 22, 2021