Karl L. Flaccus
Brothers Henderson Durkin, P.S. • Seattle, WA
TrustsEstate PlanningProbateTax
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Contact
Email
Phone
(206) 483-1565
Address
936 N 34th Street, Seattle, WA, 98103, US
Professional
About
Karl Flaccus’s practice focuses on estate planning, trusts, probate, and litigation involving wills, probates, and guardianships. He has guided thousands of families in successfully structuring important personal documents and plans, and the successful resolution of trust and estate conflicts. Karl has an extensive background in the legal field predating his 2023 merger with Brothers & Henderson. Before attending law school, he practiced tax accounting and representing clients in audits before the IRS for 11 years in Alaska. During law school, he interned with Judge Hugh Bownes of the U.S. First Circuit Court of Appeals in Boston, and clerked for the U.S. Attorney’s Office in Concord, New Hampshire. After receiving his Juris Doctor, he clerked for U.S. District Court Judge Barbara Rothstein, and for Judges Marshall Forrest and Jack Scholfield of Division I of the Washington State Court of Appeals. In 1994, he opened his own private law practice in Seattle, Flaccus Law, where he served thousands of clients in the successful structuring of important personal documents and plans. He understands the heavy emotional and financial costs of litigation for his clients. Beginning in the late 1990’s, Karl ran a free monthly legal clinic at the Shoreline Senior Center for almost 20 years, where he offered pro bono legal advice to hundreds of seniors and their family members Outside of work, Karl enjoys a myriad of outdoor activities. During his time in Alaska, he kayaked thousands of river miles and built two cabins outside of Fairbanks. He has run a number of marathons, including the Boston Marathon. Nowadays, he likes to ski, hike, and spend time with his family. The Flaccus family also spends a lot of cabin time in the Cascades throughout all the seasons.
About Trusts Law
Trust attorneys help individuals and families create and administer trusts for asset protection, tax planning, and wealth transfer. Common matters include trust creation, trust administration, trust disputes, special needs trusts.
Credentials
Education
1990 Northeastern University JD - Juris Doctor 1974 University of Rochester BA - Bachelor of Arts
Languages
English
Recognition & Involvement
Awards
2017 Preeminent 4.5 out of 5, Martindale-Hubbell
Publications
2007 King County Bar Association CLE - Advanced Guardianship Issues for Attorneys: Washington's Right to a Jury in Guardianship
Associations
1997 - Present National Association of Elder Law Attorneys Attorney Member 1995 - Present King County Bar Association Attorney Member 1990 - Present Washington State Bar Association Attorney Member American Bar Association Attorney Member 2007 - 2008 Washington State Bar Association, Elder Law Section Chair
Speaking
2012 Title 11, Washington State GAL Training Standards, Ethics and GAL Best Practices “Red Flags for Guardians Ad Litem” 2012 Continuing Legal Education, GAL Training Guardianship Medical Reports for Guardians Ad Litem 2004 Hot Topics in Elder Law Amendments to the Washington State Rules of Professional Conduct
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Updated: Sep 12, 2026