Anne-Marie Janine "A.J." de Bartolomeo

Anne-Marie Janine “A.J.” de Bartolomeo is a shareholder and partner at Tadler Law LLP with over thirty years of experience, prosecuting class actions, and complex collective matters in courts throughout the country. She has been named among the highest class of attorneys for professional ethics and legal skills with an AV-Preeminent™ rating by Martindale-Hubbell and has been recognized by her peers for inclusion in the Northern California Super Lawyers list every year since 2013.

A.J. graduated from Fairfield University with a Bachelor of Arts degree in Politics and Economics where she was a National Merit Scholar. She then received her Juris Doctorate degree from the University of California, Hastings College of Law in 1988. She has been appointed by Courts as Lead or Co-Lead Counsel, or as a Plaintiffs’ Steering Committee member in numerous multidistrict litigation class action, mass tort, and bankruptcy proceedings. 

A.J. is committed to advancing opportunities for women lawyers. She is the former Chair of the Women’s Trial Lawyer Caucus of the American Association of Justice (2015-2016), where she oversaw the caucus’s work in leadership training, student scholarship, membership and political outreach, and other pro-civil justice functions. She is an active member of the American Bar Association Sections on Tort Trial and Insurance Practice and the Consumer Attorneys of California. She is also a former member of the American Bankruptcy Institute.

A.J. often speaks to industry organizations and public corporations on the subjects of ethical procedures for client and case management, best settlement practices and procedures in complex litigation and MDL practice, ESI protocols and compliance, Daubert challenges, Federal Rule 37, corporate litigation risk management and compliance procedures, and class action notice and settlement administration. She has also authored several articles on class action settlement procedures and best practices.