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Carl W. Mills

Counsel

Locations

Bar Admissions

New York

Education

Fordham University School of Law, J.D., magna cum laude, Order of the Coif Cornell University, B.S.

Mills, Carl

Carl Mills is counsel in Hughes Hubbard’s New York litigation group.  His practice focuses on complex business litigation.  He has represented U.S. and international clients in a variety of industries, including accounting, aerospace, banking, financial services, pharmaceutical, technology, and telecommunications.  He has extensive experience representing Big Four accounting firms and their partners and employees in SEC, PCAOB, and civil litigation proceedings, as well as advising the firms with respect to regulatory and governance matters.  He also has extensive employment litigation experience, including in large scale unfair competition cases. Mr. Mills also regularly represents clients in corporate reorganization and bankruptcy-related litigation and appeals.

Currently, Mr. Mills represents a major financial services company in a complex cross-border unfair competition case, and a litigation funder in several related litigations.

Recently, Mr. Mills represented an international investment bank in a major employment matter involving unfair competition and breach of fiduciary duty claims, a Big Four auditing firm in connection with a major SEC investigation.

Earlier in his career, Mr. Mills represented the Trustee of the Lehman Brothers Inc. estate in a multi-billion dollar breach of contract litigation, that same Trustee in a major dispute concerning a deferred compensation plan, and the European entities of the former Nortel Networks enterprise in the first US-Canadian cross-border trial in history.

Mr. Mills is also committed to providing quality pro bono legal services.  He has represented clients in civil rights, divorce, landlord-tenant, immigration and naturalization, trusts and estates, and adoption matters, and provides mentorship to high school and college students interested in pursuing legal careers.

Areas of Concentration

  • Complex Commercial & Mass Tort Litigation
  • Employment Litigation
  • Accounting, Auditing, and Professional Liability
  • Corporate Reorganization Litigation
  • Arbitration

Selected Matters

  • Representing an international investment bank in a major employment dispute.
  • Representing an international investment bank in a FINRA arbitration involving claims of employee raiding.
  • Representing an international pharmaceutical company in a multi-million dollar breach of contract action.
  • Representing Big Four accounting firms in connection with a PCAOB investigation related to the firms’ audits of a major foreign telecommunications company.
  • Representing a Big Four audit partner in PCAOB investigation, including drafting Rule 5109(d) submission, preparing for and participating in a PCAOB hearing, and responding to Division of Enforcement appeal of Hearing Officer’s initial decision.
  • Representing a Big Four accounting firm in connection with DOJ and SEC investigations and civil litigation related to financial accounting and other issues at a major healthcare audit client.
  • Representing a Big Four accounting firm in various United States and international actions arising out of the Madoff fraud.
  • Representing a Big Four accounting firm in SEC and PCAOB investigations in connection with audits of several major corporations with operations in China.
  • Representing a Big Four accounting firm in connection with civil litigation regarding a major biomedical industry tax client.
  • Representing a Big Four accounting firm in SEC investigation of financial accounting and other issues at major computer hardware manufacturer audit client.
  • Advice to a Big Four accounting firm regarding compliance with legal requirements and auditing standards related to audit documentation.
  • Advice to a Big Four accounting firm regarding potential transfer of liability among member firms.
  • Assisting a Big Four accounting firm in an internal investigation related to compliance with international and United States independence requirements.
  • Researching and drafting opinion for Big Four accounting firm related to compliance with international and United States requirements related to reporting of potential illegal acts.
  • Pro Bono representation of clients in civil rights, housing, immigration, paternity, adoption and other matters.

Publications and Lectures

  • Quoted in “NC Judge Questions Barings' Bid For Ex-Employees' Emails,” Law 360, July 31, 2025.
  • American Bar Association, Accountants’ Liability 50-State Survey—Michigan (expected publication 2025)
  • PCAOB Reporting Requirements (Under Forms 2 and 3) (Sept. 2023)
  • Retirement Contributions Under § 541 (b) (7): The True History of BAPCPA § 323: Part II, Journal of the American Bankruptcy Institute (Jan. 2023)Retirement Contributions Under § 541 (b) (7): The True History of BAPCPA § 323: Part I, Journal of the American Bankruptcy Institute (Dec. 2022)
  • Auditor Litigation Considerations, panel member, Practising Law Institute (Oct. 2022)
  • Auditor Regulation and Liability Under U.S. Securities Laws, panel member, Practising Law Institute (June 2022)
  • “The Supreme Court’s Omnicare Decision: Implications for Securities Disclosures and Securities Litigation” presented to the New York County Layers’ Association Securities and Exchanges Committee (July 2015)
  • “Breach of Fiduciary Duties as Securities Fraud: SEC v. Chancellor Corp.,” 10 Fordham J. Corp. & Fin. L. 439 (2005)

Professional Activities

  • 2006, 2007, 2009 and 2015 recipient of the Legal Aid Society Outstanding Pro Bono Service Award

Court Admissions

  • Second Circuit Court of Appeals
  • Southern District of New York
  • Eastern District of New York

News & Insights For Carl W. Mills

View All News & Insights

New York Law Journal Highlights the Successes and Strength of Hughes Hubbard’s Litigation Department

Following Hughes Hubbard’s recognition as a finalist for Litigation Department of the Year (General), the New York Law Journal published a spotlight on the firm’s litigation department and its recent successes.

Litigation Wrap: Second Quarter 2025

Read about the firm’s most exciting recent litigation and arbitration victories in our Litigation Wrap for the second quarter of 2025.

Hughes Hubbard Wins Dismissal of Class Action Claims Against Ernst & Young US

The firm recently secured a victory for the U.S. member firm of major accounting services network Ernst & Young (EY) in the U.S. District Court for the District of New Jersey, in which the court dismissed all claims against EY U.S. in a putative class action.

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