David Maas
Partner
David Maas concentrates his practice on antitrust, class action, and complex commercial litigation. He represents plaintiffs and defendants across a broad spectrum of industries, including healthcare, technology, financial services, energy and natural resources, pharmaceuticals, manufacturing, and retail. David has handled cases or government investigations involving antitrust law, tax, healthcare regulatory compliance, securities laws, and the False Claims Act, along with consumer class action matters.
David also provides antitrust counseling to clients in connection with mergers, acquisitions, and affiliations. He serves as antitrust counsel to associations and joint ventures. David regularly assists clients in various industries, including healthcare and technology, with investigations by federal and state antitrust enforcement authorities.
Admitted to Practice
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Washington, 2016
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Illinois, 2011
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U.S. Court of Appeals 7th Circuit, 2015
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U.S. Court of Appeals 9th Circuit, 2019
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U.S. Court of Appeals 10th Circuit, 2020
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U.S. District Court Northern District of Illinois, 2012
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U.S. District Court Southern District of Illinois, 2014
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U.S. District Court Eastern District of Washington, 2021
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U.S. District Court Western District of Washington, 2017
Education
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J.D., Northwestern University School of Law, cum laude
- Senior Articles Editor, Articles Review Board, Journal of Criminal Law and Criminology
- Teaching Assistant, Legal Writing and Negotiation
- Joan Carmel Matlaw Scholar
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B.A., Philosophy, Pomona College
- Semester Abroad, Oxford University
- Academic All-American, Cross Country and Track & Field
Memberships & Affiliations
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- Equip for Equality Kids Campaign, Board Member, 2012-2014
Professional Recognition
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- Named one of "America's Leading Lawyers for Business" by Chambers USA in Antitrust (Washington), 2021
- Selected to "Washington Rising Stars," Thomson Reuters, 2017-2021
- Selected to "Illinois Rising Stars," Thomson Reuters, 2014-2015
Background
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- Associate, Reed Smith LLP, Chicago, 2011-2015
- Student Advocate, MacArthur Justice Center Clinic, Chicago, 2009-2011
- Civil Rights Litigation Team Extern, Equip for Equality, Chicago, 2011
- Summer Associate, Reed Smith LLP, 2010
- Judicial Extern, Hon. Judge Virginia M. Kendall, Chicago, 2010
- Summer Associate, Keller Rohrback, LLP, Seattle, 2009