Biography
Recently, Luke’s practice has primarily focused on the following areas:
Antitrust Litigation: Luke has deep experience litigating antitrust cases. He has served in leading roles on teams litigating against federal and state regulators in litigation challenging mergers, as well as in private antitrust litigation under the Sherman and Clayton Acts. Some of Luke’s recent experiences include:
- Representing a major food retailer in multiple bench trials against federal and state regulators challenging a proposed merger;
- Representing a major healthcare company in a federal bench trial challenging a proposed merger;
- Representing a major technology company in a federal bench trial challenging a proposed merger; and
- Representing companies in private antitrust litigation under the Sherman and Clayton Acts.
False Claims Act Litigation and Investigations: Luke regularly works on False Claims Act litigation and investigations, including working on teams:
- Representing a telecommunications company in multiple cases in trial court and on appeal;
- Representing companies facing Department of Justice investigations into alleged False Claims Act violations.
Other Commercial Litigation and Government Investigations: Luke’s other cases span a wide variety of subject matters. Some of Luke’s recent experience includes serving on teams:
- Representing companies in the energy, technology, and retail industries facing class actions and mass actions, including MDLs;
- Representing companies in federal court and before arbitration tribunals in disputes involving breach of contract claims, fraud claims, state tort claims, and alleged consumer protection violations;
- Representing individuals bringing a constitutional challenge to a D.C. law;
- Representing a major Class I railroad in a petition for certiorari to the U.S. Supreme Court; and
- Representing companies facing government and congressional investigations, including companies facing parallel criminal, civil, and regulatory proceedings.*
After law school, Luke served as a law clerk to the Honorable Timothy M. Tymkovich, Chief Judge of the United States Court of Appeals for the Tenth Circuit. He then practiced at another international law firm before joining Weil.
Luke earned his law degree, magna cum laude and Order of the Coif, from Georgetown University Law Center, where he served as the Senior Notes Editor of the Georgetown Law Journal. Prior to law school, Luke served as an analyst at a financial technology company. He received his undergraduate degree, cum laude, from the College of the Holy Cross.
* includes matters handled prior to joining Weil
Awards and Recognition, Speaking Engagements, Guides and Resources, Latest Thinking, Firm News & Announcements
Latest Thinking
- Supreme Court Rejects Non Consensual Third Party Releases in Chapter 11 Plans Publication — By Zack Tripp, Ronit J. Berkovich, Josh Wesneski, Luke Sullivan and Sebastian Laguna — PDF — June 28, 2024
- Supreme Court Holds that Courts—Not Arbitrators—Decide Which Conflicting Contract Controls Arbitrability Publication — By Mark A. Perry, Zack Tripp, Josh Wesneski and Luke Sullivan — PDF — May 23, 2024
- Risks of Nonmutual Offensive Collateral Estoppel in MDLs Publication — Law360 — By Chantale Fiebig and Luke Sullivan — March 15, 2024
Firm News & Announcements
- Weil Lawyers Named to 2023 Capital Pro Bono Honor Roll Firm Announcement — June 03, 2024
- Weil Represents Meta in High-Stakes Trial Victory Over FTC Litigation Win — February 06, 2023