Leading Appellate Lawyer Yaira Dubin Joins Sullivan & Cromwell From Solicitor General’s Office

NEW YORK (SEPTEMBER 3, 2025) - Sullivan & Cromwell LLP announced today that Yaira Dubin has joined the firm as a partner in its New York office. Ms. Dubin joins S&C from the U.S. Department of Justice's Office of the Solicitor General. As an Assistant to the Solicitor General from 2021 to 2025, Ms. Dubin represented the United States in matters before the Supreme Court, supervised priority litigation in federal appellate and district courts, and advised agencies across the federal government. Now returning to private practice, Ms. Dubin will strengthen S&C's litigation capabilities and expand the footprint of the firm's leading Supreme Court and Appellate Practice in New York.

"Yaira is one of the most accomplished appellate lawyers of her generation," said Sullivan & Cromwell Co-Chairs Robert Giuffra and Scott Miller. "We have built a preeminent Supreme Court and Appellate Practice over the last decade, and Yaira will allow us to grow that practice in New York, where our financial services and other clients are increasingly turning to us for their most important appeals."

Ms. Dubin has won major copyright, bankruptcy, tax, labor and employment, constitutional, and civil rights appeals. She has argued six cases in the U.S. Supreme Court, including Cunningham v. Cornell University (ERISA); United States v. Miller (bankruptcy); Connelly v. United States (tax); Warner Chappell Music v. Nealy (copyright damages); Santos-Zacaria v. Garland (jurisdiction); and Andy Warhol Foundation v. Goldsmith (copyright fair use). While at the Solicitor General's Office, Ms. Dubin also filed over 100 Supreme Court briefs at the merits and certiorari stages, involving diverse areas of federal law such as securities regulation, federal contracting, intellectual property, criminal procedure, sovereign immunity, the Medicare Act, the First Amendment, and reproductive rights. During her previous tenure in private practice, Ms. Dubin successfully litigated on behalf of her clients in federal and state appellate courts across the country. Outside the courtroom, Ms. Dubin counsels clients on legal and strategic objectives, including clients at the cutting edge of innovation navigating novel regulatory questions.

"We're thrilled to welcome Yaira to our firm and appellate practice," said S&C Supreme Court and Appellate Practice Group Head Jeff Wall. "She is a first-rate oral advocate and brilliant writer. We're very fortunate that she has decided to join us."

"I'm excited to join Sullivan & Cromwell and its world-class litigation team," said Ms. Dubin. "I've long admired the firm's commitment to excellence, and I see a unique opportunity to expand the firm's elite appellate practice, including in the Supreme Court and in appellate courts in New York and around the country."

Ms. Dubin earned her J.D., magna cum laude, from Harvard Law School and her bachelor's degree in Biology, summa cum laude, from Yeshiva University. She clerked at all three levels of the federal judiciary: for Justice Elena Kagan on the U.S. Supreme Court, Judge Sri Srinivasan on the U.S. Court of Appeals for the D.C. Circuit, and Judge James E. Boasberg on the U.S. District Court for the District of Columbia.

About S&C's Supreme Court and Appellate Practice

S&C's Supreme Court and Appellate Practice handles challenging and high-profile appeals before the Supreme Court, the federal courts of appeals and state appellate courts. The firm also counsels on complex legal issues at earlier stages of the litigation, including motions to dismiss, for summary judgment and at class certification. Of the nearly 50 Supreme Court arguments our team has delivered, nearly 80 percent have been in the last eight years-giving the S&C team unparalleled knowledge of the current Supreme Court. S&C's appellate team also has deep experience in briefing and arguing appeals on the merits, handling motions practice before federal and state appellate courts, filing petitions for review and interlocutory appeals, preparing amicus curiae briefs, pursuing administrative appeals before various regulatory bodies, and engaging in settlement negotiations.

S&C's recent appellate record includes victories for:

• Energy companies, persuading the U.S. Supreme Court to reverse in an important standing case that will allow affected parties to challenge government rules, in Diamond Alternative Energy v. EPA.
• Broadband industry groups, ending two decades of fighting and uncertainty over broadband regulation by persuading a unanimous Sixth Circuit to strike down the FCC's controversial net-neutrality rules.
• Great Lakes Insurance, obtaining a unanimous U.S. Supreme Court reversal in Great Lakes Insurance v. Raiders Retreat Realty, an important case for the maritime insurance industry.
• FirstEnergy, obtaining two critical rulings in the space of one week that defused massive securities litigation, ending with a Sixth Circuit ruling that vacated the certification of that class of investors.
• Walgreens, obtaining a victory in a landmark bellwether case in the national opioid multidistrict litigation, with the Ohio Supreme Court invalidating a $650 million judgment obtained by two Ohio counties.
• Allianz SE, obtaining a Ninth Circuit ruling affirming the dismissal with prejudice of all claims brought against the company and a U.S. subsidiary by a putative class of ADR holders that sued after the collapse of the Structured Alpha Funds.
• Canadian Pacific, winning a pair of multibillion-dollar appeals: one rejecting a challenge to the company's $31 billion merger with Kansas City Southern, and another affirming the dismissal of a bondholder redemption suit.
• JPMorgan, winning the unanimous dismissal of all state securities and common law claims on appeal to the Second Circuit in connection with a syndicated loan arranged by a group of banks.
• Bayer, prevailing in an appeal before the en banc Delaware Supreme Court in a multibillion-dollar case involving liability for consumer talc product claims.
• Major League Baseball, successfully defending it in a high-profile appeal alleging that MLB's minor league player development system reorganization in 2020 violated the federal antitrust laws.

About Sullivan & Cromwell LLP

Sullivan & Cromwell LLP is a global law firm that advises on major domestic and cross-border M&A; significant litigation and corporate investigations; finance and corporate transactions; and complex antitrust, regulatory, tax and estate planning matters. The firm's hallmarks are the highest-quality independent advice and intense dedication to solving client problems. Founded in 1879, Sullivan & Cromwell has more than 900 lawyers located in offices in New York, Washington, D.C., Los Angeles, Palo Alto, London, Frankfurt, Paris, Brussels, Hong Kong, Beijing, Tokyo, Melbourne and Sydney.