Arthur Biller


Arthur Biller is a partner in the Denver office of Lewis Brisbois and is a member of the Complex Business & Commercial Litigation, Government Investigations, Securities Litigation & FINRA, and White Collar Criminal Defense Practices. Arthur has experience representing private equity firms, hedge funds, and public and private companies in all stages of civil litigation in federal and state courts, at both the trial court and appellate levels, as well as before the SEC and U.S. Attorney’s Office. Arthur has experience in matters involving breach of contract, breach of fiduciary duty, veil-piercing, fraudulent transfer, successor liability, employment discrimination, insider trading, the Securities Act of 1933, the Securities Exchange Act of 1934, disputes over securitized trusts, and professional negligence.

Prior to joining Lewis Brisbois, Arthur was an associate at a large law firm in New York. Arthur earned his Juris Doctorcum laude from New York University School of Law and his Bachelor of Artsmagna cum laude from New York University. After graduating from law school, Arthur clerked on the Supreme Court of New Jersey for the Honorable Helen E. Hoens.

Primary Area(s) of Practice

  • Complex Business & Commercial Litigation
  • Antitrust & Competition

Additional Experience


New Jersey

New York


United States District Court for the Southern District of New York

United States District Court for the District of New Jersey

United States District Court for the District of Colorado

Awards & Honors

  • New York State Bar Association Empire State Counsel, 2014-2017
  • Legal Aid Society Pro Bono Publico Award, 2014-2016


New York University School of Law

Juris Doctor, cum laude, 2010

  • Notes Editor, NYU Journal of Law and Business

New York University

Bachelor of Arts, magna cum laude, 2007

  • Dean’s Honor List: Fall 2003, Academic Years 2004-2007
  • Presidential Honors Scholar
  • Founder’s Day Honors Scholar

Pro Bono & Philanthropy

Arthur represented a class of transgender Medicaid recipients against the New York State Department of Health in Cruz v. Zucker. The case involved a challenge to a New York State regulation that prohibited Medicaid coverage for transgender-related healthcare. The court ruled in favor of the class on summary judgment, resulting in a new regulation that provides essential healthcare for low-income transgender New Yorkers.