Tadler Law LLP > New York, United States > Firm Profile

Tadler Law LLP
NEW YORK 10119
United States

Dispute resolution > E-discovery Tier 2

Established in 2019, Tadler Law LLP, founded by the ‘super-smart, commercial, down-to-earth’ Ariana Tadler, approaches e-discovery work from the perspective of the plaintiff, rather than the defendant which is more typical of larger firms. The women-owned and operated litigation boutique, certified by Women’s Business Enterprise National Council in 2020, provides discovery expertise to individuals, corporations and other law firms and has had particular success representing clients in class-action litigation proceedings relating to data breaches. The New York-based Tadler co-leads the practice alongside San Francisco practitioner A.J. de Bartolomeo, who has a reputation for advising on MDL class actions, mass torts, and bankruptcy proceedings. In Denver, Brian Morrison handles consumer and product liability disputes.

Practice head(s):

Ariana Tadler; A.J. de Bartolomeo

Other key lawyers:

Brian Morrision


‘Pragmatic, personal, efficient, friendly, outcomes-oriented, fees are aligned to real value delivered not to timesheets.’

‘Ariana Tadler is a delight. Super smart, commercial, down-to-earth, creative, practical, caring yet tough when it comes to negotiating!’

‘Experts in the area of e-discovery and case management. They develop and implement successful litigation plans to achieve a favourable result for their clients.’

‘The professionals knowledge and experience make the firm and its lawyers the easy choice when considering which law firm to hire. They have the ability and experience to undertake the most difficult legal challenges and to efficiently undertake the case.’

Key clients

Hope Solo

Oriana Cyprus

J. B Hunt Transport Services, Inc.

K2 Distribution Company, LP

Work highlights

  • Represented multiple claimants in a class action relating to a data breach at Marriott International Inc.
  • Represented Stephen Adkins a class action representative in litigation proceedings against Facebook.
  • Represented many claimants in a class action against Apple.

Tadler Law LLP is a women-owned litigation boutique that represents consumers, investors, and businesses in complex and class action litigation nationwide. Founded in 2019 by Ariana J. Tadler, a leading plaintiffs’ litigator and a pioneer in e-discovery law, the firm offers 20-plus years of litigation experience in the areas of complex and class action litigation, e-discovery, contract negotiation and legal risk consulting.

Tadler Law partners with law firms and clients looking to diversify their legal teams and offers the highest level of litigation experience. Tadler Law’s partners have handled hundreds of cases in federal, state, and bankruptcy courts and collected over a billion dollars for our clients collectively throughout our years of practice. The firm is at the forefront of complex and class action litigation.

The firm advises high-net-worth investors, investment institutions, middle-market companies, municipalities, and consumers in a variety of matters. Tadler Law also served as special discovery counsel on behalf of parties to complement their in-place litigation teams.

Capitalizing on decades of courtroom experience in complex and class action cases, the firm regularly litigates high-profile, national and international matters, involving Fortune 100 parties represented by top AmLaw firms. The firm is known for deploying state-of-the-art technology to efficiently achieve creative and effective solutions for its clients. The firm is uniquely positioned as a leading authority in the plaintiffs’ bar in the field of electronic discovery, having its founding partner repeatedly earned Litigation: E-Discovery Band 1 USA and Global recognition from Chambers and Partners. Tadler law is the only plaintiffs’ firm that has a Band 1 ranked lawyer in Chambers and Partners E-Discovery rankings year after year. All of Tadler Law lawyers are highly trained and experienced litigators and E-Discovery practitioners.

Founder and Managing Partner Ariana J. Tadleratadler@tadlerlaw.com212-946-9300
Partner A.J. de Bartolomeoajd@tadlerlaw.com212-631-8689
Partner Brian R. Morrisonbmorrison@tadlerlaw.com646- 924-1040
Director of Operations and Administrative Services Sheba A. Makonnensmakonnen@tadlerlaw.com212-946-9300
Ariana Tadler photo Ariana TadlerFounder and Managing Partner
A.J. de Bartolomeo photo A.J. de BartolomeoPartner
Ariana J. Tadler : Founder and Managing Partner
A.J. de Bartolomeo : Shareholder and Partner
Brian R. Morrison : Partner
Joann Militano : Senior Associate
Jason A. Joseph : Case Manager
Sheba A. Makonnen : Director of Operations and Administrative Services