Simpson Thacher & Bartlett LLP recently expanded its advertising litigation team with the arrival of Laura Brett as the group’s new practice head in May 2025, following her previous work at the NAD. She has brought expertise in advertising law and NAD cases to the group, often representing clients in the pharmaceuticals, life sciences, retail and technology industries.

The advertising litigation practice at Herbert Smith Freehills Kramer covers a wide scope of disputes, from consumer class action defense to National Advertising Division (NAD) challenges and Lanham Act disputes. The team has advised global brands on false advertising consumer class actions brought under state consumer law as well as false advertising disputes brought under the federal Lanham Act. It also assists clients with disputes prevention, advising on clearance and claim substantiation. The team is based in New York and spearheaded by commercial litigator Norman Simon. Simon is well-versed at bringing challenges before the NAD and the National Advertising Review Board (NARB) as well as representing clients in false advertising disputes. Boaz Cohen is skilled in handling advertising litigation as well as investigation and enforcement proceedings. Civil litigation specialist Eileen Patt also handles false advertising cases, consumer class actions, advertising clearance and claim support.

Debevoise & Plimpton LLP is a stand-out firm for Lanham Act false advertising disputes in court before the Federal Trade Commission (FTC), the NAD and the FDA. The firm specializes in prosecuting and defending against requests at preliminary injunction and is experienced in handling advertising campaigns and defending ads before regulators. The team is also adept at handling class actions involving the advertising sector and assisting with regulatory investigations. Practice head David Bernstein leads the intellectual property litigation group, he focuses on false advertising cases, unfair competition, marketing disputes and disputes involving comparative advertising, substantiation and endorsements. He splits his time between San Francisco and New York. Also in New York, Megan Bannigan is known for her expertise in advertising and IP disputes, while Jared Kagan is well-versed in advertising and marketing law, representing clients before the NAD. Christopher Ford assists with trade mark and false advertising cases. Melissa Runsten resides in Washington D.C. and excels in FDA and FTC regulatory issues, representing clients in NAD disputes involving regulatory issues.

The advertising, marketing and promotions practice at Kirkland & Ellis LLP covers a wide scope of work, from consumer class action defense and Lanham Act disputes to National Advertising Division (NAD) challenges and FTC investigations. Chicago-based Robin McCue is a prominent voice at NAD conferences and proceedings with her extensive courtroom experience in all related litigation matters. Los Angeles-based Robyn Bladow is a skilled consumer class action litigator, while Washington DC-based Gregg LoCascio and Richard Cunningham and Dallas-based Olivia Adendorff are also noted for their work in advertising litigation and FTC enforcement matters. The team is skilled at handling emergency proceedings, seeking and defending against temporary restraining orders and preliminary injunctions on an expedited basis, and the firm’s attorneys hold technical backgrounds – a key differentiator in matters turning on scientific substantiation. The group has been especially active in the GLP-1 space, serving as lead counsel to Eli Lilly in numerous false advertising lawsuits, while also securing a complete jury defense verdict for Abbott Laboratories in a $250 million-plus consumer class action in California state court. Ross Weisman has retired.

New York-based firm Patterson Belknap Webb & Tyler LLP has a wealth of experience handling advertising litigation for global multi-jurisdictional brands and companies. The team is sought out by clients from a broad range of industries including pharmaceuticals, food and beverage, cosmetics, apparel and telecoms. It has been active in handling class actions on behalf of brands as well as aiding with claims substantiation, regulatory compliance and advertising clearance. Steven Zalesin spearheads the group and is an expert in false advertising, IP and commercial disputes. He has represented both plaintiffs and defendants at trial and appellate courts and is regularly sought out by consumer product companies for representation in false advertising cases. Jane Metcalf is a key name to note, she aids clients with litigation involving FDA-regulated products and consumer class actions. Litigation specialist Joshua Kipnees focuses on representing pharmaceutical, dietary supplement and cosmetics clients in advertising claims.

Kelley Drye & Warren LLP advises clients across the US on state and federal consumer class actions involving advertising and labelling claims, pricing issues and deceptive trade practices. The firm is well-known for its work on NAD challenges, both bringing and defending claims on behalf of clients. John Villafranco sits in Washington D.C. and is the go-to for NAD issues and has represented clients in claims involving native advertising, consumer fraud, social media influencers and online reviews. The class actions practice is led by Lauri Mazzuchetti in New Jersey and Becca Wahlquist who handles commercial litigation from Los Angeles. Donnelly McDowell leads the advertising and marketing team in Washington D.C. and is well-versed in consumer protection law and advertising law.

Excelling in handling NAD claims, Loeb & Loeb LLP is a go-to firm for advertisers and brands for advertising disputes. It aids clients with novel and complex claim substantiation issues and has advised on a number of different issues from AI to green claims and consumer surveys. The team is well-versed in representing advertisers as both plaintiffs and defendants in Lanham Act litigation related to false or misleading advertising and IP claims. David Mallen leads  the New York team, leveraging his experience as a former deputy director of the NAD to advise on claims before the NAD and FTC investigations. The Chicago team is headed up by Tom Jirgal who is well-versed in handling advertising litigation for consumer goods, communications, entertainment and food industries. Libby O'Neill is part of the Chicago team and represents clients before the NAD and assists with claim substantiation.

Weil, Gotshal & Manges LLP represents multinational brands and companies in a slew of marketing and advertising disputes. The team handles litigation at federal and state court levels, advising on Lanham Act false advertising claims,  consumer class actions and regulatory investigations. Drew Tulumello sits in Washington D.C. alongside Arianna Scavetti and focuses on commercial litigation and false advertising class actions. Scavetti is well-versed in handling disputes involving misleading product labelling and marketing issues. David Singh resides in Silicon Valley and is the go-to for class action defense. The three aforementioned partners all co-lead the advertising and marketing practice. Randi Singer left the firm in 2024.

The advertising, marketing and digital media litigation group at BakerHostetler represents clients in consumer class actions, disputes related to advertising technology such as cookies and contentious issues involving subscription-based models and negative option marketing. The team in Los Angeles is led by Bethany G. Lukitsch who centers her practice on class action defence, aiding multinational clients in false advertising cases and consumer class actions related to product liability, data privacy and other issues. Co-lead Julie Singer Brady spearheads the team in Orlando and focuses on contentious issues involving defective products, deceptive fees and false advertising.

A&O Shearman centers its advertising litigation practice on false advertising claims and unfair competition disputes. The firm has represented a number of life sciences companies including biopharmaceutical, medical device and supplement companies in false advertising claims, deceptive trade practices and consumer class actions. It also has experience in handling proceedings before the NAD. Practice head Saul Perloff is a seasoned litigator who is well-versed in advising on false advertising cases and NAD proceedings. Andre Hanson is noted for his work on Lanham Act litigation. The practice is based in Austin.

The advertising disputes team at DLA Piper LLP (US) sits within its IP and technology group and advises global clientele on false advertising disputes, regulatory investigations and Lanham Act cases. The team is well-equipped to handle cases involving advertising claims which intersect with trade mark and patent litigation. San Diego-based Melissa Reinckens is a name to note on the team, handling advertising and trade mark disputes, she is a go-to lawyer for false advertising matters and regulatory challenges by the FTC and FCC. Tamar Duvdevani chairs the team in New York handling a mix of IP and advertising claims.

Frankfurt Kurnit Klein & Selz PC focuses on representing consumer brands and advertising agencies in advertising and marketing lawsuits before the NAD, state and federal agencies and the FTC. It has broad expertise across native advertising, influencer marketing, claim substantiation, green marketing and disclosures. The team is co-led out of New York by advertising specialists Terri Seligman, Kimberly Maynard and Caren Decter. Seligman leads on NAD claims, bringing and defending cases for national and multinational brands. Decter handles consumer class actions and Maynard centers her practice on IP and false advertising disputes.

King & Spalding's litigation team is comprised of experts in handling advertising and consumer class actions for food and beverage, consumer products, pharmaceuticals and automotive sectors. The firm has a team that spans over the United States, with lawyers based in both the East and West Coast. Dale Giali and Keri Borders both reside in Los Angeles and are go-to litigators for multinational food and beverage and dietary supplement companies looking to defend consumer class actions.

Sidley Austin LLP's advertising, marketing and promotions practice is jointly led out of New York and Washington D.C. by advertising litigation specailists Randi Singer and Benjamin Mundel. Singer covers a broad range of advertising disputes including copyright issues, Lanham Act false advertising cases and trade mark cases. Mundel is sought out for his expertise in advertising investigations and litigation brought by the FTC. The firm boasts a strong client base, espeically in the technology, media and communications sectors.

Venable LLP is well-positioned to advise on a range of advertising law issues, representing clients in claims before numerous regulatory bodies such as the FTC, NAD, CFPB and the FDA. The team has been active in defending clients from advertising class actions especially in the food and beverage industry. Typical claims the team handles involve packaging and labelling issues. The firm also advises broadcasters, retail brands, consumer goods companies and financial services. Roger Colaizzi leads the national advertising litigation team from Washington D.C. and defends clients in bet-the-company litigation and Lanham Act false advertising lawsuits.

 

The advertising litigation team at Winston Taylor focuses on defending consumer-fraud class actions and false advertising clients. It is also has experience representing plaintiffs in class actions. The firm has defended clients from pricing and warranty claims including drip pricing issues. Many of the firm's clients come from the food and beverages sector but the firm also advises life sciences, tobacco, retail, financial services and travel clients. Chicago-based Ronald Rothstein spearheads the practice and is sought out for his skills in false advertising and unfair competition law. He handles consumer class actions and Lanham Act false advertising litigation. Jared Kessler sits in Miami and is noted for his class action expertise.