Maggie M. Lassen

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While in law school, Maggie was drawn to the human connection, which is paramount to estate planning, and how it intersects with the rigorous field of tax law. While completing her law degree, she built her foundational knowledge by obtaining a Masters in Tax Law. Maggie then dove into her estate planning career at the largest law firm in the Puget Sound, Perkins Coie LLP, where she focused on counseling clients in both the tax and nontax aspects of estate planning, as well as representing them in probate and trust administration proceedings.

Craving the personal and client benefits of a boutique firm focused exclusively on estate planning and estate administration matters, Maggie learned that Three60 Law Group provided that and so much more. Maggie was thrilled to join Three60 Law Group, where she fully engages herself and her clients in the Three60 team approach to estate planning by utilizing a client-centered and collaborative method of counseling, all while combining decades of legal experience.

Professional Experience:

Three60 Law Group PLLC
2019 to present

Perkins Coie
November 2011 to January 2019


University of Washington School of Law
LL.M., 2012

University of Washington School of Law
J.D., 2010

University of Washington, B.S.
Economics, cum laude, 2008

Awards and Activities:

Selected as a “Washington Rising Star” in Super Lawyers Magazine, 2017 – 2018

Washington First Responder Will Clinic, Seattle, WA, Document Drafter, 2011 – present

Washington Women in Tax, Member

Contact Maggie Lassen