John Nadolenco: Lawyer with Mayer Brown LLP

John Nadolenco

Los Angeles,  CA  U.S.A.
Phone213 229 5173

Peer Rating
AV® Preeminent

Client Rating

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Practice Areas

  • Congressional Investigations & Crisis Management
  • Consumer & Employment Arbitration
  • Consumer Financial Protection Bureau
  • Employment & Benefits
  • ERISA Litigation
  • Life Sciences
  • Litigation & Dispute Resolution
  • Consumer Litigation & Class Actions
  • Electronic Discovery & Information Governance
  • Employment Litigation & Counseling
  • Privacy & Security
  • Social Media Law
  • Sports
  • Entertainment & Media
Contact InfoTelephone: 213 229 5173
Fax: 213 625 0248
University University of Arizona, B.A., summa cum laude, 1992
Law SchoolAmerican University Washington College of Law, J.D., summa cum laude, 1995
Admitted1995, California; 1995, US District Court for the Central District of California; 1995, US District Court for the Eastern District of California; 1995, US District Court for the Northern District of California; 1995, US District Court for the Southern District of California; 1996, US Court of Appeals for the Ninth Circuit


Los Angeles County Bar Association

Member of the Board of Governors for the Association of Business Trial Lawyers (ABTL), Los Angeles, since 2005


John Nadolenco is an experienced civil litigator whose practice is focused on class-action defense, including defending consumer class actions, employment class actions, and securities and derivative cases. With regard to consumer cases, John has defended companies is a variety of class and individual actions, including claims alleging improper consumer charges and practices, false and misleading advertising, defective products, unauthorized call recording under California's Invasion of Privacy Act (CIPA), violations of the Fair Credit Reporting Act (FCRA), internet privacy violations and improper tracking via computer-based cookies and improper use of smart-phone and tablet applications (or apps). With regard to employment claims, John has extensive experience defending wage-hour cases, including cases alleging meal-period, rest-period and off-the-clock violations, as well as claims alleging incorrect pay statements and waiting-time and other penalties. John also has extensive experience drafting and enforcing consumer and employee arbitration provisions, privacy policies, terms of use and social-media policies. John served as co-editor of Mayer Brown's The Social Media Revolution: A Legal Handbook.

John also has represented clients in antitrust, environmental, real estate and general commercial and business cases litigation (e.g., breach of contract, fraud, unfair competition). He has represented clients in a wide variety of industries, including retailers, Internet search engines, Internet companies, biotechnology companies, telecommunications companies, financial institutions, automobile companies, railroads, and entertainment companies.

John is a contributor to Class Defense , the firm's blog on key issues affecting class action law and policy.

Within Mayer Brown's Litigation practice, John serves as Office Practice Leader for the Los Angeles Litigation department and Firm-wide Co-Group Leader of the Consumer Class Action group. He received a Martindale-Hubbell peer review rating of AV-Preeminent in 2013 and was also named in the 2010 and 2011 editions of The Best Lawyers in America. In 2009, he was named one of the Top 20 California Lawyers Under 40 by the Daily Journal. John joined the firm in 1995.


Documents by this lawyer on

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California Approves Consumer Law Protecting Right to Leave Negative Online Reviews
Richard M. Assmus,Maximillian L. Del Rey,John Nadolenco, November 8, 2014
User-driven websites, where users are able to leave feedback about products or businesses, have increasingly become the backdrop for disputes over the non-disparagement clauses used to shield businesses from critical online reviews. Companies use these clauses to create penalties for consumers who...

Lack of Standing in Data Privacy Cases: Not Just A Federal Court Defense
John Nadolenco,Evan M. Wooten, August 5, 2014
While data privacy—especially data breach—cases in the United States have been on the rise for years now, most cases never make it past the pleading stage. Indeed, federal courts frequently dismiss data-privacy complaints for lack of standing under Article III of the US...

FTC’s Report Provides Recommendations for Data
Justin R. Dickerson,John Nadolenco,Evan M. Wooten, July 14, 2014
Edith Ramirez, the chair of the US Federal Trade Commission (FTC or the Commission), has often said that “with really big data, comes really big responsibility.” What she meant was not always clear.

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Office Information

John Nadolenco

350 South Grand Avenue, 25th Floor
Los AngelesCA 90071-1503


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