Rathna Ramamurthi’s practice involves a broad range of litigation and arbitration matters.

She focuses on international disputes, including those involving foreign states and state-owned entities, as well as disputes involving antitrust issues, and other high-stakes matters for clients across a range of industries. Rathna has represented clients at every stage of proceedings, including preliminary injunctions, motions to dismiss, fact and expert discovery, summary judgment, pre-trial motions, trial, post-trial motions, asset enforcement, and settlement. She has also represented clients in numerous appeals and has argued before various district courts and the U.S. Court of Appeals for the D.C. Circuit. 

Rathna joined the firm in 2017 and became a partner in 2026.

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Notable Experience

  • The Republic of Argentina in various class and individual actions, and numerous appeals, in connection with the country’s 2001 economic crisis, involving creditor attempts to enforce arbitral awards, and creditor attempts to enforce judgments against various assets in the U.S. and abroad.

  • Credit Lyonnais, National Westminster Bank, Commerzbank, and BNP Paribas in obtaining dismissal or prevailing on summary judgment in actions brought under the civil provisions of the the Anti-Terrorism Act and Justice Against Sponsors of Terrorism Act, and in successfully defending these victories on appeal before the Second Circuit and D.C. Circuit.

  • The Argentine Province of Mendoza, prevailing 7-0 in the N.Y. Court of Appeals in defeating defaulted debt claims on statute of limitations grounds.

  • The Republic of Lebanon in the design of an asset protection strategy and sovereign immunity issues in connection with its $30 billion Eurobonds restructuring, and in other U.S. court litigation.

  • The Ministries of Defence and Health of the State of Kuwait in litigation related to embezzlement and fraud by a purported lawyer and others.

  • Citigroup Global Markets Inc., as dealer manager, in litigation aspects of the Republic of Ecuador’s successful consent solicitation and invitation to exchange from holders of 10 series of debt securities with an aggregate principal amount outstanding of approximately $17.4 billion.

  • OBI Pharma in bringing licensing and breach of contract claims through an arbitration under the Delaware Rapid Arbitration Act (DRAA).

  • Medtronic in antitrust litigation brought by Applied Medical Resources in the U.S. District Court for the Central District of California, alleging monopolization via anticompetitive bundling and exclusive dealing.

  • Zillow in defending claims brought by the Federal Trade Commission and a group of state Attorneys General related to a partnership agreement with Redfin.

  • Netafim in winning dismissal of group boycott claims related to irrigation equipment.

  • FINRA in successful litigation before the SEC defending rulemaking related to covered agency mortgage transactions.

  • Michael Carroll, former CEO of Brixmor, a publicly traded (REIT), in defending against federal criminal charges filed by SDNY and SEC securities fraud charges, resulting in nolle prosequi, and complete dismissal of all criminal and civil charges.

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Selected Activities

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Member, South Asian Bar Association of Washington D.C.

Member, D.C. Steering Committee, Just The Beginning, A Pipeline Organization

Publications