Mark Twyford Cassell

Mark Twyford Cassell

4.7
Rating: 10.0

Licensed for 9 years

Family Lawyer at Seattle, WA
Practice Areas: Family, Divorce & Separation, Criminal Defense ... +5 more

814 Second Avenue, 515, Seattle, WA

About Mark

Biography

Fees and Rates

Cost

Free Consultation

$0 first 60 minutes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in Washington for 9 years

State: Washington

Acquired: 2016

Active

No misconduct found

Location

Twyford Law Office - Seattle

814 Second Avenue, 515, Seattle, WA, 98104

Julie Twyford - Spokane

430 West Indiana, Spokane, WA, 99205

Twyford Law Office - Bellevue

1408 140th Pl NE 400, Bellevue, WA, 98007

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Mark Twyford Cassell's Reviews

Avvo Review Score

4.7 /5.0

46 Client Reviews

5 star (43)
4 star (0)
3 star (0)
2 star (0)
1 star (3)

Posted by Maggie | January 13, 2025 | Hired Attorney

This review is from a person who hired this attorney.

Couldn't be in better hands!

Had a wonderful experience here! Mark Cassell helped in my family Law case. He listened to what my concerns were and made sure I was heard. I would recommend this firm to anyone who needs family law legal help!

Posted by Jenny | October 20, 2024 | Hired Attorney

This review is from a person who hired this attorney.

Hire this man!

I recently went through a difficult divorce with many painful and emotional avenues. After interviewing four other lawyers and firing the cheapest due to incompetency, Mark Cassell was my perfect choice. Immediately I felt at ease due to his professionalism, understanding, and his availability when d...ealing with some of the crazy that comes with divorce and with ex’s. He calmed me and guided me to say and do exactly what needed to be done in an anxiety ridden time. My divorce took over one year to finalize, but throughout the court hearing for temporary orders and months later the finalizing of everything in front of a judge, Mark maintained excellent communication, always responding promptly to my emails and making sure I was up-to-date on developments. Mark and his team at Twyford Law were not only knowledgeable about the legal aspects but also very empathetic about the emotional challenges I faced. My outcome was 100% favorable, better than I could have hoped for, which I owe to Mark and his team's skillful negotiation and dedication to my case. Overall, working with Mark Cassell at Twyford Law was a very positive experience during an extremely challenging time, and I highly recommend them to anyone in need of a divorce lawyer.

Posted by Darren | May 17, 2024 | Hired Attorney

This review is from a person who hired this attorney.

Happy Client

I had the pleasure of working with Mark Cassell from Twyford Law Office. As soon as I started working with Mark he made sure everything I needed to get my life back was his priority. He got my apartment back within the first couple of weeks of working with him when prior to that I was out of my apart...ment for several months. He was very approachable and answered all my questions easily. His whole team communicated perfectly to me and sent me copies of everything. They responded to my emails and questions fast. they always made me feel like they had my back. Mark is phenomenal when he is talking with prosecutor and Judge he holds himself in a very professional manner. I couldn't recommend him and his team enough.

Posted by anonymous | November 2, 2023 | Hired Attorney

This review is from a person who hired this attorney.

Expertise Personified

Mark was very knowledgeable in a way that worked to my advantage. He was very empathic and calm, supportive, and swift in a difficult time. His paralegal and staff were helpful and courteous, too. Highly recommend.

Posted by Scott | May 10, 2022 | Hired Attorney

This review is from a person who hired this attorney.

Great Law firm

Very professional and knowledgeable staff. I would highly recommend them. They handled a child custody and a criminal case for me. They got straight to the point and got things handled. They are all very experienced.

See All Client Reviews

Mark Twyford Cassell's Lawyer Endorsements

Endorse Mark
Julie A. Twyford headshot
Julie Twyford

Criminal defense lawyer | Oct 20

Relationship: Worked together on matter

"Mark Cassell is an outstanding young attorney. He has excellent knowledge of criminal law issues, and is a zealous advocate. You cannot go wrong with Mark in your corner!"

Gabriel Nathan Schwartz headshot
Gabriel Schwartz

Criminal defense lawyer | Nov 02

Relationship: Worked together on matter

"I had the pleasure to work with Mark on a handful of cases. He is a fighter and aggressively represents his clients."

Karen Gwen Schweigert headshot
Karen Schweigert

Family lawyer | Sep 13

Relationship: Opposing Counsel on matter

"I endorse this lawyer. Mark is an outstanding attorney. He represents his clients with zealous professionalism."

Jacqueline Porter headshot
Jacqueline Porter

Family lawyer | Mar 06

Relationship: Fellow lawyer in community

"Mark is one of the smartest lawyers I have ever worked with."

Steven Michael Clark headshot
Steven Clark

Unknown lawyer | Apr 18

Relationship: Fellow lawyer in community

"Mark's knowledge of the law is surpassed only by his dedication to his clients. I would not hesitate recommend Mark for any legal matter, and would completely trust his legal analysis on any legal issue."

Aurora Maria Maskall headshot
Aurora Maskall

Family lawyer | Jun 15

Relationship: Worked together on matter

"Mark is a skilled advocate who is dedicated to his clients and has the knowledge and insight to assist them in successfully navigating the family law court system."

Gabrielle Christine Roth headshot
Gabrielle Roth

Divorce and separation lawyer | May 01

Relationship: Opposing Counsel on matter

"Mark and I have worked on several matters opposing one another in recent years. They have not always been easy, but I have found Mark to be professional, intelligent, respectful and a pleasure to work with. I can appreciate that Mark is a tough advocate, but not so much that it gets in the way of his professionalism. I have referred cases to him on occasion when I have had a conflict or believe that he may be best suited for a case. I believe Mark to be an outstanding attorney and happily endorse him."

Senit M Lutgen headshot
Senit Lutgen

Divorce and separation lawyer | Apr 26

Relationship: Fellow lawyer in community

"Mark Cassell, is a tenacious adversary. He is always prepared for court. He knows the law well, and his arguments are persuasive. I appreciate his level of dedication and thoroughness, because it makes more work for me, when I have to deal with someone who is unprepared. I can always count on Mark to be ready and to be well versed in the legal issues in the dispute."

Devin Andrew Marks headshot
Devin Marks

Criminal defense lawyer | Feb 20

Relationship: Worked for lawyer

"I had the pleasure of working for Mark. He is organized and accessible. He puts his client's needs first, while aggressively advocating for their interests."

Deanna Crull headshot
Deanna Crull

Family lawyer | May 17

Relationship: Worked together on matter

"Mark is an amazing advocate for his clients. He is extremely knowledgeable and skilled inside the courtroom and out. I would feel confident recommending anyone to him."

Alexander D Biel headshot
Alexander Biel

Criminal defense lawyer | May 08

Relationship: Fellow lawyer in community

"I see Mark around the courthouse and in court all the time. He is busy and diligent - very knowledgeable about law, and speaks well. I highly recommend Mark Twyford Cassel as your attorney."

Morgen Irene Oswood headshot
Morgen Oswood

Criminal defense lawyer | Dec 14

Relationship: Worked together on matter

"I endorse this lawyer. I got to know Mark very well in law school. He has a dedicated passion for all clients and the ability to understand the law."

Eric Samuel Charney headshot
Eric Charney

Criminal defense lawyer | Dec 12

Relationship: Worked together on matter

"I endorse this lawyer. Mark and I worked on a contentious Domestic Violence case that involved numerous violations and the potential for the client to face serious jail time. All throughout the process Mark kept a cool head and helped us reach a favorable plea offer."

Tyson L. Welch headshot
Tyson Welch

Unknown lawyer | Nov 29

Relationship: Friend

"Mark and I worked together frequently during law school. Mark was a hard worker and actively focused on learning skills that would help him with his current practice. He also appeared to be a very zealous advocate for his clients."

Lily Gene Ramirez headshot
Lily Ramirez

Criminal defense lawyer | Nov 29

Relationship: Worked together on matter

"Mark has his client's best interest in mind from the second he gets a case. He is extremely knowledgeable about the law and a diligent worker."

Jenna McKay Hatch headshot
Jenna Hatch

Divorce and separation lawyer | Oct 27

Relationship: Worked together on matter

"Mark assisted me with a family law matter and was extremely professional. He helped me come up with a solution to a problem, while displaying a vast amount of knowledge. His familiarity with legal principles, and desire to help people, is truly exceptional."

View All Endorsements
Olivia Ann Gonsior headshot
Olivia Gonsior

Divorce and separation lawyer

Jillian Lee Jordan headshot
Jillian Jordan

Divorce and separation lawyer

Jacqueline Porter headshot
Jacqueline Porter

Mediation lawyer

Steven Michael Clark headshot
Steven Clark

Criminal defense lawyer

Aurora Maria Maskall headshot
Aurora Maskall

Family lawyer

Alexander D Biel headshot
Alexander Biel

Criminal defense lawyer

Deanna Crull headshot
Deanna Crull

Criminal defense lawyer

Gabriel Nathan Schwartz headshot
Gabriel Schwartz

Criminal defense lawyer

Julie A. Twyford headshot
Julie Twyford

Divorce and separation lawyer

Jenna McKay Hatch headshot
Jenna Hatch

Divorce and separation lawyer

Experience

Rating:  10.0 (Superb)

Honors

2019

Top 40 Under 40, American Academy of Attorneys

2019

Top 40 Under 40, National Trial Lawyers

2018

Top Lawyer, American Law Society

2018

Top Attorney, Avvo

2017

Client's Choice, Avvo

2016

Scholastic Excellence Award-Evidence Practicum, University of Denver

2016

Scholastic Excellence Award- Advanced Family Law, University of Denver Sturm College of Law

2015

Charles F. Brannan National Scholarship, University of Denver

2015

Scholastic Excellence Award - Evidence (Top Grade), University of Denver Sturm College of Law

2014

Scholastic Excellence Award-Evidence, University of Denver

2014

Stephen Burrell Memorial Endowed Scholarship, University of Denver

2014

Zavell Family Endowed Scholarship, University of Denver

2014

Morrisard and Rossi Endowed Scholarship, University of Denver

2013

Best Advocate Award, STLA

Work Experience

2016 - Present

Associate Attorney, Twyford Law Office

2015 - 2015

Certified Student Attorney, Colorado Public Defender's Office

2014 - 2014

Legal Clerk, Samler and Whitson

2014 - 2015

Certified Intern, University Of Denver Student Law Office

Associations

2017 - Present

National Association of Criminal Defense Lawyers

Member

2017 - Present

Washington Defender Association

Member

2016 - Present

Washington Association of Criminal Defense Lawyers

Member

2016 - Present

Federal Bar Association

Member

2016 - Present

Washington State Bar Association, Family Law Section

Member

Washington State Bar Association

Member

Seattle County Bar Association

Member

Sample of Legal Cases

City v. H.H.

Dismissed

See More Legal Cases

Education

2016

University of Denver Sturm College of Law

JD - Juris Doctor

2013

University of Washington

BS - Bachelor of Science

Speaking Engagements

2018

Safe Meeting

State of DUIs in Spokane

Publications

Languages

English

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution