Katie Rios, Lewis Roca Photo

Katie M. (Derrig) Rios

Associate
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Katie Rios is an associate in the firm's Litigation Practice Group. Katie's practice focuses on general commercial litigation matters, labor and employment, insurance defense, and lawsuits brought under the Employee Retirement Income Security Act (ERISA). She has experience researching and drafting memoranda on complex matters, including for an immigration asylum appeal in the Ninth Circuit. She also has experience publishing case notes regarding ERISA litigation.

While in law school, Katie served as Editor-in-Chief of the Arizona Law Review. She was also a student attorney for the Domestic Violence Law Clinic at the University of Arizona, where she assisted clients in matters relating to domestic violence and abuse, including advice and counsel for divorce proceedings and representation for contested Order of Protection hearings. Prior to her time as a student attorney, Katie served as a judicial extern to the Honorable Lynnette C. Kimmins of the U.S. District Court for the District of Arizona, where she drafted trial and court orders and report and recommendation summaries on prisoner petitions for habeas corpus.

More About Katie M. (Derrig) Rios

Education

  • J.D., summa cum laude, University of Arizona, James E. Rogers College of Law, Order of the Coif, 2021
  • B.A., summa cum laude, Russian Language, Arizona State University, 2015

Bar Admissions

  • Arizona, 2021

Court Admissions

  • Arizona Supreme Court
  • U.S. Court of Appeals, Ninth Circuit
  • U.S. District Court, District of Arizona
  • U.S District Court, District of New Mexico

Community

  • Vice Chair 2022–23, American Bar Association Tort and Insurance Practice Section, Life, Health & Disability Insurance Law Committee
  • Member, Federal Bar Association, Phoenix Chapter, Diversity Chair, 2022-2023
  • Member, Defense Research Institute
  • Member, Arizona Women Lawyers Association

Honors & Recognitions

  • The Best Lawyers in America, "Ones to Watch," Commercial Litigation, Litigation - Labor and Employment, 2025
  • Order of the Coif
  • ALI CLE Scholarship and Leadership Award
  • CALI Awards: Legal Research, Analysis, and Communication II, Evidence, ERISA, Federal Income Tax, Employment Law

Publications

Blog Posts

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