Sonia Kuester Pfaffenroth > Arnold & Porter > Washington DC, United States > Lawyer Profile

Arnold & Porter
601 MASSACHUSETTS AVE, NW
WASHINGTON, DC 20001-3743
United States

Lawyer Rankings

United States > Antitrust > Cartel

At Arnold & PorterBill BaerSonia Kuester Pfaffenroth and practice co-head Debbie Feinstein recently re-joined the team in Washington DC; Baer and Pfaffenroth from the DOJ, and Feinstein from the FTC. In New York, Jennifer Patterson conducted an internal investigation of alleged price-fixing by the US subsidiary of an international auto parts manufacturer client, and is currently advising another manufacturer on its leniency application in two foreign jurisdictions. A major Korean company recently appointed James W Cooper to represent it in a DOJ investigation into allegations of bid-rigging for fuel service contracts. Jonathan Gleklen heads the national antitrust offering and Saul Morgenstern leads the New York branch. Litigation expert James L Cooper is also a key name to note.

United States > Antitrust > Civil litigation/class actions: defense

Debbie Feinstein heads Arnold & Porter‘s global antitrust practice, while Jonathan Gleklen leads the US offering and Saul Morgenstern spearheads the New York branch. In recent highlights, Gleklen is part of the team advising Visa in litigation brought by putative classes as well as individual merchant plaintiffs challenging the default interchange fees set in the Visa and MasterCard system rules. James L. Cooper acted for Mitsui and its affiliates in class actions brought by end payers, automobile dealers and truck dealers on the grounds of an alleged price-fixing conspiracy in the ocean shipping industry. New York-based Jennifer Patterson is currently working alongside Morgenstern to represent a major US freight railroad in a number of class actions alleging surcharges on freight shipments in violation of the Sherman Act. Other key names include Sonia Kuester Pfaffenroth and Laura Shores. Named individuals are based in Washington DC unless otherwise stated.

United States > Antitrust > Merger control

The global antitrust team at Arnold & Porter is led by Debbie Feinstein in Washington DC, which is also from where Jonathan Gleklen heads the US practice. The team was recently engaged by Monsanto to oversee its blockbuster acquisition by Bayer and the sale of its precision planting equipment business to AGCO, and by AT&T – led by Feinstein and Richard Rosen – to obtain global antitrust clearance for its landmark vertical merger with Time Warner. Also notable was Michael B Bernstein‘s advice to BP regarding a number of strategic transactions, including the acquisition of the majority of BHP’s shale oil and gas assets and the sale of its non-operating interests in Alaska’s Kuparuk oilfields. James L Cooper is assisting longstanding client Cristal with the proposed sale of its titanium dioxide business to Tronox for $1.7bn plus a 24% share in the combined entity. Bill BaerSonia Kuester Pfaffenroth and counsel Matthew Schultz are also key contacts.