Cassandra Lenning

Partner

My Legal Practice

I represent employees and executives who have been subjected to discrimination, retaliation, or unequal pay in the workplace. I am a fierce litigator who is equally ready to take a client’s case to court or quietly negotiate a favorable resolution.

Over the past 15 years, I’ve represented employees in every stage of their career, from young professionals punished for taking family or medical leave, to seasoned female executives who suddenly hit a glass ceiling, and everyone in between.

My practice currently focuses on representing employees of large tech companies, such as Amazon, Microsoft, Twitter, and Meta, who are powerful adversaries and don’t back down easily.

I’m not one to back down from a fight either, and I’ve successfully first and second-chaired multiple arbitrations and jury trials against major corporations.

Unfair and inequitable treatment at work impacts many facets of my clients’ lives. It jeopardizes the very core of who they are – not just their livelihood, but their health, security, and future.

That’s why I passionately advocate on their behalf, to deliver the justice they deserve.

Notable Cases

  • Representing a class of women in Wilmuth et al. v Amazon, a class action lawsuit that alleges women are systemically paid less than their male peers who perform similar work.
  • Secured a nearly $1 million settlement for a female investment fund manager who was paid less than her male colleagues and was fired after her employer discovered she was pregnant.
  • Represented two tech executives in arbitration and secured a million-plus settlement to resolve allegations they were fired after speaking up about unsafe working conditions.
  • Secured a favorable pre-trial settlement for a female banking executive who was retaliated against, denied promotion, and ultimately fired because she spoke up about workplace discrimination.
  • Secured a $445,000 jury verdict for a highly accomplished U.S. Department of Justice professional who was passed over for promotions in favor of a substantially younger and less qualified man.
  • Litigated and secured a favorable settlement for a tenured George Washington University professor who was paid her less than male colleagues, including those with significantly less experience and tenure.
  • Represented multiple female law partners who allege their firms discriminated against them based on their gender and paid them less than similar male partners.

Credentials

  • B.A., University of Washington, cum laude
  • J.D., Duke University School of Law
  • Admitted to practice in California, Washington, the District of Columbia, and Virginia
  • Admitted to practice in the Supreme Court of the United States; the U.S. District Courts for the Districts of Colorado, Columbia, Maryland, and the Western District of Washington; and the U.S. Court of Federal Claims.
  • Lawdragon 500 Leading Civil Rights & Plaintiff Employment Lawyers, 2022-2025
  • Best Lawyers – Labor and Employment Litigation, 2025
  • Best Lawyers – Individual Employment Law, 2024-2025
  • Best Lawyers – Ones to Watch, 2021-2023
  • Super Lawyers Rising Star, 2019-2022
  • Chair, Washington State Bar Association Labor and Employment Law Section (2022-2025); Executive Committee (2020-present)
  • Member, American Bar Association
  • Member, National Employment Lawyers Association, Washington Employment Lawyers Association, Metropolitan Washington Employment Lawyers Association, and California Employment Lawyers Association
  • Panelist, “The Future of DEIA in the Workplace Following Students for Fair Admissions v. Harvard,” 24th Annual Labor and Employment Law Conference, Washington State Bar Association
  • Panelist, “Addressing Accommodation, Retaliation, Light Duty and Performance Management: Employee Leave under the FMLA, ADA and PWFA,” ABA Labor and Employment Law Conference
  • Panelist, “Beyond Timing: Defeating Summary Judgment in Retaliation Cases,” Defeating Summary Judgement in the Face of the Evolving Defense Tactics, National Employment Lawyers Association

My Story

I was drawn to becoming a lawyer from a young age, mostly by my desire to use the law to help people. After studying the criminal justice system in college and human rights in law school, I began my career working for a non-profit organization focused on civil liberties.

While working on refugee and asylum cases, I found that many of my immigrant clients had been taken advantage of or abused in the workplace. It was then that I discovered my true calling as an employment attorney.

Latest

Cassandra's Recent Articles