A headshot of Callie Castillo.

Callie Castillo

Partner
Seattle

Callie Castillo is an accomplished litigator and appellate advocate. Having spent more than a decade at the state Attorney General's Office advising and defending public officials and agencies, Callie now successfully guides her clients through myriad forms of complex legal challenges with a particular emphasis on government investigations and enforcement actions. Callie uses her litigation expertise to serve clients across a wide sector of highly regulated industries including financial services, health care, transportation, building and construction, and telecommunications. Callie maintains an active appellate practice, having briefed and argued more than 20 cases before the Washington Courts of Appeals, the Washington Supreme Court, and the federal Courts of Appeals.

Callie has been commended for her work by Chambers USA's Guide to America's Leading Lawyers for Business, where one source states, "She's a fantastic lawyer. Her strengths are her communication, tireless effort for the client, and great knowledge."

When Callie is not helping clients navigate legal challenges, she enjoys spending time with her husband and son, reading almost any book, paddleboarding, and volunteering with local organizations near to her heart.

Representative Experience 

Representative Matters

  • Representation of corporations and trade associations in constitutional and administrative regulatory challenges to federal, state, and local government actions
  • Representation of corporations subjected to state attorney general antitrust and consumer protection investigations and resulting litigation in matters related to real estate, solar industry, health care, senior living, consumer pricing, and financial services
  • Representation of aircraft manufacturer in wrongful death and product liability litigation

Professional Highlights

Pro Bono Experience

Callie maintains an active pro bono practice. She participates in the Federal Bar Association, Western District of Washington pro bono panel program and regularly volunteers with local organizations offering free legal clinic services.

Professional Activities

Transportation Lawyers Association, Aviation Committee Co-Chair, 2022-Present

Washington State Bar Association, Tax Section, Legislative Committee Co-Chair, 2021-2023

Washington State Bar Association, Committee on Professional Ethics, 2017-2018

Leadership Council on Legal Diversity, Fellow, 2024

Recognition & Accomplishments

Chambers USA: America's Leading Lawyers for Business, Litigation: General Commercial, 2024

The Best Lawyers in America, Commercial Litigation, 2024-2025

Thomson Reuters, "Washington Super Lawyer," Business Litigation, 2024

Washington State Attorney General's Office Excellence Award, 2013, 2016, 2018

Speaking Engagements

"Recent Legal Challenges to Election Laws and Practices,” Washington Association of Prosecuting Attorneys, June 21, 2024

"Election Law Updates,” Government Bar Lawyers Association, June 13, 2024

"Multi-Modal Update," Transportation Lawyers Association, May 3, 2024

"A Discussion on the Criminalization of the Boeing 737 MAX and its Relevance to Aviation Litigation," ABA Tort Trial and Insurance Practice Section, October 26, 2023

"The Justice League: How Companies Team Up to Challenge Industry Threats They Cannot Handle Alone," Transportation Lawyers Association, April 27, 2023

"Two's Company, Three's a Possible Indictment – The Ins and Outs of Joint Competitor Activities," Transportation Lawyers Association, January 20, 2023

"Modern Election Law and Voting Rights Challenges," Municipal Research and Services Center, June 2, 2022 

Board Memberships & Community Service

Non-profit organization serving people worldwide in education, international/relief, youth camps, and senior living, Member of Board of Trustees

We the People, State Finals Judge, 2023-Present

King's High School, Mock Trial Volunteer Coach, 2020-2023

Credentials 

Education

George Mason University School of Law (J.D. 2005)
Journal of Law, Economics, and Policy, Peer Review Editor, 2004-2005

University of Washington, (B.A. 2001)
Political Science Honors Program
Phi Eta Sigma Honors Society

Admissions

Washington

U.S. District Court for the Eastern and Western Districts of Washington

U.S. Court of Appeals for the Ninth Circuit

U.S. Court of Appeals for the Fifth Circuit

U.S. Supreme Court