Practical. Creative. Trusted.
Focused on helping clients navigate emerging tech, AI, and data-related legal challenges.
ZwillGen Attorneys Named 2025 BTI Client Service All-Stars
We’re thrilled to announce that Marc Zwillinger and Kandi Parsons have been named to the BTI Client Service All-Stars 2025, the only independently researched, client-driven ranking of attorney client service.
Our Practices
We provide unparalleled expertise across a wide range of areas, including artificial intelligence, privacy and global data protection, cybersecurity, law enforcement and surveillance, marketing and e-commerce, vendor contracting, alternative data, gaming, gambling, and fantasy sports, and related investigations and litigation. Our attorneys are uniquely positioned to identify issues that others might overlook, offering clients a more focused and strategic legal perspective.
Privacy & Global Data Protection
Our experienced team can help you asses, build, improve, and maintain your company's practices related to privacy, information security, marketing, vendor and customer contracting, and more.
Information Security
We develop consumer-facing and internal privacy and security policies and incident response plans that can bring your company into compliance with applicable laws and keep pace with developing industry standards.
Our Practices
We provide unparalleled expertise across a wide range of areas, including artificial intelligence, privacy and global data protection, cybersecurity, law enforcement and surveillance, marketing and e-commerce, vendor contracting, alternative data, gaming, gambling, and fantasy sports, and related investigations and litigation. Our attorneys are uniquely positioned to identify issues that others might overlook, offering clients a more focused and strategic legal perspective.
Artificial Intelligence
We advise clients on development, operationalization, and adoption of machine learning, large language models, and other technologies powered by artificial intelligence.
Law Enforcement & Surveillance
We advise tech companies on their rights and responsibilities in responding to law enforcement requests, including issues related to subpoenas, court orders, search warrants, national security, and real-time surveillance orders.
Gaming Licensing Simplified
ZG Gaming Solutions is a specialized service provider that handles the complexity of gaming licensing for operators, executives, service providers, and investors. We worry about licensing so you don't have to.
Blog
Recent insights from the ZwillGen blog.
Our Team
Get direct, practical answers — the kinds of answers that help you make decisions — from a team with decades of combined experience.
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Jamie Elbert
attorney
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Mason Weisz
attorney
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Sheila Marie
staff
Our Culture
We like the work we do and we like each other. And we take our work seriously, but we don't take ourselves too seriously.
Trusted by industry heavyweights
Some of the biggest names in technology, media, gaming, and more rely on us to respond to and resolve their most serious legal challenges.
Thought Leadership
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September 1, 2025
Regulatory Uncertainty for Daily Fantasy Sports in California
In this Gambling Insider article, Marc Zwillinger breaks down the landscape and legality of daily fantasy sports (DFS) in California after the state’s attorney general declared both DFS and Pick’em games illegal. While every other court that’s...
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August 26, 2025
New Rulings Bolster Plaintiffs In Illinois Genetic Privacy Suits
Illinois courts are taking an increasingly expansive view of the state’s Genetic Information Privacy Act (GIPA), broadening the scope of what counts as “genetic information” and paving the way for more plaintiff-friendly claims. In a...
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August 15, 2025
Insurers Face New Rules as AI Enters the Claims Process
In this The AI Journal article, Brenda Leong and Jey Kumarasamy break down the current landscape of artificial intelligence governance in insurance operations, particularly in underwriting, claims handling, fraud detection and customer engagement. In terms...
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August 13, 2025
Emotional Delusion: Why We Believe AI Likes Us
By Brenda Leong and Marc Zwillinger. This article was originally published by IAPP. We asked a large language model: “Are you real?” It answered: “I’m real in the way a spreadsheet is real — useful,...
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August 13, 2025
Racing and Gaming Conference: Michigan Account-Wagering Ruling Bashed
In this article for the Daily Racing Forum, Melanie laCour is quoted discussing the impact of a Michigan ruling on account-wagering for horse racing. Her quote in the article is taken from her panel appearance...
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August 11, 2025
Third Circuit Tosses Class Action Against GameStop’s Tracking Software
ZwillGen attorneys Jeff Landis and Sheri Pan secured a significant victory when the Third Circuit affirmed a dismissal of a proposed class action against GameStop, which had accused the company of violating Pennsylvania’s wiretap law....
