Mark Twyford Cassell
Premium Member
Experience:
10 years
Language(s):
English
Mark Cassell | Seattle Family Law & Divorce Lawyer
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Main Office
430 W Indiana Ave.
Spokane, WA 99205
Office Hours
Monday - Friday8:00 AM - 5:00 PM
Other Locations
Proudly serving Spokane, Seattle, Bellevue WA and surrounding areas.
Twyford Law Office
About Mark
Mark Cassell is Twyford Law Office’s newest Partner. He began at Twyford Law Office in 2016 after graduating from the University of Denver School of Law. He started as an associate attorney at the firm, focusing primarily on Divorce and Family Law.
Mark has successfully handled hundreds of family law and divorce cases. He is well known in the community as a strong advocate for his clients and a tremendous trial lawyer. Mark believes in client-centered lawyering, bringing this view to all the cases he works on. He creates a strong bond with each client, viewing cases as a team effort where the client is the captain of the ship. He ensures each client is steered in the proper direction to achieve their goals. Mark is experienced in all areas of family law, including negotiation, mediation, motions, and trial.
Mark’s background in engineering and math allows him to excel in high asset and business valuation cases. He has extensive knowledge in these areas and has successfully navigated high asset divorce matters for his clients in both negotiation and trial.
Mark earned his J.D. from the University of Denver Sturm College of Law in 2016, where he graduated with Academic Distinction. He graduated with the highest grades in classes including Evidence, Evidence Practicum, and Family Law: The Divorce. Before earning his J.D., he graduated from the University of Washington with a B.S. in Chemical Engineering and a minor in Mathematics. He is admitted to the Washington State Bar.
Call our offices to begin your journey toward legal success with a firm you can trust. We offer our services in Seattle, Spokane, Bellevue, WA and surrounding areas. Visit one of our offices today:
Twyford Law Office - Seattle Office
814 Second Avenue, Suite 515,
Seattle, WA 98104
(206) 590-7085
Monday-Friday 8:00 am-5:00 pm
Twyford Law Office - Spokane Office
430 W Indiana Ave,
Spokane, WA 99205.
(509) 327 0777
Monday-Friday 8:00 am-5:00 pm
Twyford Law Office - Bellevue Office
1408 140th Pl NE Suite 400,
Bellevue, WA 98007
(425) 517-3350
Monday-Friday 8:00 am-5:00 pm
Mark has successfully handled hundreds of family law and divorce cases. He is well known in the community as a strong advocate for his clients and a tremendous trial lawyer. Mark believes in client-centered lawyering, bringing this view to all the cases he works on. He creates a strong bond with each client, viewing cases as a team effort where the client is the captain of the ship. He ensures each client is steered in the proper direction to achieve their goals. Mark is experienced in all areas of family law, including negotiation, mediation, motions, and trial.
Mark’s background in engineering and math allows him to excel in high asset and business valuation cases. He has extensive knowledge in these areas and has successfully navigated high asset divorce matters for his clients in both negotiation and trial.
Mark earned his J.D. from the University of Denver Sturm College of Law in 2016, where he graduated with Academic Distinction. He graduated with the highest grades in classes including Evidence, Evidence Practicum, and Family Law: The Divorce. Before earning his J.D., he graduated from the University of Washington with a B.S. in Chemical Engineering and a minor in Mathematics. He is admitted to the Washington State Bar.
Call our offices to begin your journey toward legal success with a firm you can trust. We offer our services in Seattle, Spokane, Bellevue, WA and surrounding areas. Visit one of our offices today:
Twyford Law Office - Seattle Office
814 Second Avenue, Suite 515,
Seattle, WA 98104
(206) 590-7085
Monday-Friday 8:00 am-5:00 pm
Twyford Law Office - Spokane Office
430 W Indiana Ave,
Spokane, WA 99205.
(509) 327 0777
Monday-Friday 8:00 am-5:00 pm
Twyford Law Office - Bellevue Office
1408 140th Pl NE Suite 400,
Bellevue, WA 98007
(425) 517-3350
Monday-Friday 8:00 am-5:00 pm
Call to discuss my fee structure.
Admission
Washington
2016
Recognitions & Achievements
Associations
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Washington Defender Association
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Federal Bar Association
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Washington State Bar Association, Family Law Section
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Washington State Bar Association
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Seattle County Bar Association
Honors / Awards
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Top 40 Under 40-American Academy of Attorneys2019
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Top 40 Under 40-National Trial Lawyers2019
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Top Lawyer-American Law Society2018
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Top Attorney-Avvo2018
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Client's Choice-Avvo2017
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Scholastic Excellence Award-Evidence Practicum-University of Denver2016
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Scholastic Excellence Award Advanced Family Law-University of Denver Sturm College of Law2016
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Charles F. Brannan National Scholarship-University of Denver2015
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Scholastic Excellence Award Evidence (Top Grade)-University of Denver Sturm College of Law2015
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Scholastic Excellence Award-Evidence-University of Denver2014
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Stephen Burrell Memorial Endowed Scholarship-University of Denver2014
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Zavell Family Endowed Scholarship-University of Denver2014
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Morrisard and Rossi Endowed Scholarship-University of Denver2014
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Best Advocate Award-STLA2013
Notable Work
Publications
Sippy Cup Mom
How to Request a Psychological Evaluation in Your Child Custody Case
2024
Mom News Daily
How Much Child Support Can I Expect After a Divorce?
The Bragging Mommy
8 Strategies for Helping Kids Adjust to a Divorce
University of Denver Sturm College of Law-Law Review
Disquieting Discretion: Race, Geography and The Colorado Death Penalty In the First Decade of The Twenty-First Century
2015
Additional Info
Founded 1990
Twyford Law Office Highlights
Divorce & Family Law, Divorce, Child Custody, Child Support, Criminal
Firm Size:
1
Firm Locations:
1
Languages:
English
Mark Twyford Cassell has been a Premium Member since June 10, 2026.
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