Sean Francis Mangan

Sean Francis Mangan

also known as LTC(Ret) Mangan, US Army, Mangan Law

5.0
Rating: 8.7

Licensed for 22 years

Military law Lawyer at Silverdale, WA
Practice Areas: Military Law, Criminal Defense, Family

10661 Old Frontier Rd NW, Suite 211, Silverdale, WA

About Sean

Biography

Practice Areas

3

Practice Areas

Military Law 90%

Military Criminal and Administrative Matters: Representation during investigations, Defense against Courts-Martial & Administrative Separations, Rebuttal to Letters of Reprimand, Negative Evaluations, and Medical Credentialing.

90%
Criminal Defense 8%

I primarily take cases for military family members arising from on-post incidents.

8%
Family 2%

I occasionally take on divorce and family law issues for military families.

2%

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes


Payment Methods

  • Check
  • Credit Card

Looking for an attorney? Avvo can help.

search module image

Search our directory

Quickly connect with top attorneys through our legal directory to get help with your legal issue.

chat module image

Avvo's live chat agents can help coordinate a consultation with a local attorney.

Chat with a live agent who can match you with the right attorney for your legal needs.

Chat with

Licenses

Licensed in Washington for 6 years

State: Washington

Acquired: 2019

Active

No misconduct found

Licensed in Oregon for 22 years

State: Oregon

Acquired: 2003

Inactive

No misconduct found

Location

Mangan Law

10661 Old Frontier Rd NW, Suite 211, Silverdale, WA, 98383

Ad

Transform legal challenges into solutions.

Connect now to review your situation.

The Avvo Rating explained

display-bg

The Avvo Rating explained

Sean Francis Mangan's Reviews

Avvo Review Score

5.0 /5.0

122 Client Reviews

Showing 11 - 15 of 45 reviews | Practice Area Knowledge

Posted by Kojo | May 04, 2024 | Hired Attorney | Military Law

Commanders Investigation

Both Sean and his staff, were extremely helpful from the consultation to the conclusion of my case. Sean’s knowledge of military law and regulations and his commitment to his clients is exceptional. As a military officer facing an allegation that could end my career, Sean and his team gave me hope. I... can 100% say Sean knows what he is doing when it comes to defending you. Despite his work load, his communication was outstanding and gave me updates as he got them. Through Sean’s experience in handling similar cases, we were well prepared and got the results we hoped for. My career is back on track, thanks to Sean and his team and I am truly grateful for all you did. Look no further if you ever need a military defense lawyer.

Posted by anonymous | December 21, 2023 | Hired Attorney | Military Law

The Best Around

Sean was in my corner the minute I consulted with him. He looked at my case and knew exactly what to do. Sean makes sure you’re comfortable and diligent with his work. I was able to get my honorable discharge and move on to the next chapter of my life thanks to Sean. 100 percent recommend.

Posted by anonymous | October 12, 2023 | Hired Attorney | Military Law

General Court- Martial

Sean saved my life. This was the best investment I have ever made. Sean’s extensive 20+ year military career as a judge and appellate judge, as well as serving as a both Prosecutor and Defense Counsel, gave me the confidence to pull the trigger and hire him. He exceeded expectations and truly had m...y best interest in mind the entire time. I was facing 20+ yrs in prison with the charges I was accused of. Sean fought for me and got every major charge dismissed without prejudice. If I had relied on a military defense alone, I have no doubt my life would be over. Sean exposed the military justice system by demanding that logic and reason be present in the court room rather than current social climates and political agendas. Sean took control of this case and did nothing short of saving my life and for that I’ll always be grateful. Invest in your future by investing in Sean Mangan.

Posted by Ryan | September 19, 2023 | Hired Attorney | Criminal Defense

Sean is a Criminal Defense EXPERT

Sean and I met in 2022 during a very uncertain time in my life. I had recently resigned from a police department and was in transition to the sheriffs office, working an interim position with a security company. A company that I later found out had some very shady business practices. Before I knew it..., this shady company put me into a position where I was facing criminal charges for an offense that I did not commit. This also lead to a review for police decertification. I lost my conditional offer to the sheriffs department and watched all of my life opportunities fall away as criminal charges loomed over my head. However, Sean stayed by my side and guided me through the entire process, even despite uncertainty. During the process, Sean demonstrated unwavering integrity, working with his impressive network of connections with courts and attorneys to win my case. He also displayed immense knowledge on criminal defense. He worked tirelessly and devoted time even outside of our original contract to ensure that I would get the justice I deserved. Sean represented me through the entire court process and we got all charges dropped with prejudice. Because of Sean, I got the chance that I deserve to resume my law enforcement career.

Posted by Peter | July 27, 2023 | Hired Attorney | Military Law

Best decision for any military active duty or government service physician

I had an issue with military medical privileging. The due process of afforded government service physicians is not due process at all. I got no response from my organization until Shawn began to represent me. His passion, attention to detail, tireless work ethic, and desire to see justice done for me... as his client was outstanding. His knowledge of the military, credentialing process, risk management/quality assurance, rights of physicians made this very painful experience result in a 100% good outcome for me. If you are a military, active duty or government service physician, and you have issues with your medical privileges or credentialing, Mr. Sean Mangan is the one and only lawyer I would ever consider representing me.

See All Client Reviews

Sean Francis Mangan's Lawyer Endorsements

Endorse Sean
Paul Charles Judge headshot
Paul Judge

Military law lawyer | Nov 17

Relationship: Worked for lawyer

"I met Sean when I was a legal intern back in 2014. Now, we work together at The Law Offices of Sean F. Mangan, PLLC. I cannot say enough good things about Sean. He knows military law as good or better than anyone I have ever met. He is incredibly skilled in the courtroom. He is a thoughtful and creative problem solver with administrative issues. He has a deft hand with managing clients' problems and a wide network of professional relationships. I strongly recommend him and am proud to call him my mentor."

Amir Ragab Hamdoun headshot
Amir Hamdoun

Criminal defense lawyer | Aug 16

Relationship: Worked together on matter

"Sean Mangan is an expert litigator and a master in the courtroom. I had the fortune of working with Mr. Mangan on a criminal case that went to trial. The client's interests were represented to the full maximum potential. As an attorney, I would turn to Sean Mangan for tips on a wide spectrum of topics. I learned a great deal from Sean. With his knowledge base and calm demeanor, he made the trial team feel confident every step of the way. Sometimes, the battle is won before trial begins and Sean prepares his clients like no other. Highly recommend."

Cory Alan Chipman headshot
Cory Chipman

Military law lawyer | Jun 30

Relationship: Fellow lawyer in community

"I worked with Sean on several cases as his co-counsel. He is a knowledgeable professional with years of experience, including time as a military judge. He provided excellent representation to his clients and got results beyond expectations. Judges he practices in front of see him as a peer and respect his experience and arguments."

Jocelyn C. Stewart headshot
Jocelyn Stewart

Military law lawyer | Oct 16

Relationship: Worked together on matter

"Sean Mangan is one of the most knowledgeable and hardworking attorneys in his field. Dedicated and committed to every client and every case, Sean brings experience as a prior military judge, prosecutor, and defense attorney. I do not hesitate to endorse him."

Cody Elijah Harnish headshot
Cody Harnish

Military law lawyer | Sep 28

Relationship: Co-worker

"I wholeheartedly endorse this lawyer. Sean is an exceptional attorney with a ton of experience. What people cannot learn from experience, Sean naturally possesses. This means he is a knowledgeable, talented, and gifted lawyer."

View All Endorsements
Paul Charles Judge headshot
Paul Judge

Military law lawyer

Cody Elijah Harnish headshot
Cody Harnish

Military law lawyer

Experience

Rating:  8.7 (Excellent)

Honors

2010

Bronze Star Medal, DOD

2001

Superior Advocate Award- Mock Trial, University of Oregon School of Law

Work Experience

2020 - Present

Owner/Attorney, Mangan Law

2018 - 2020

Criminal Law Policy Attorney, US Army

2015 - 2018

Trial Judge, US Army

2013 - 2015

Regional Defense Counsel, Us Army Jag Corps

2010 - 2013

Professor of Criminal Law, TJAGLCS

2009 - 2010

Special Operations Legal Counsel, DOD/Joint Task Force

2008 - 2009

LLM Candidate, Us Army Jag Corps

2007 - 2008

Supervising Appellate Counsel, Us Army Jag Corps

2006 - 2007

Appellate Counsel, Us Army Jag Corps

2005 - 2006

Chief of Military Justice, Us Army Jag Corps

2005 - 2006

Special Assistant United States Attorney, Department Of Justice

2004 - 2004

Military Magistrate, Us Army Jag Corps

2003 - 2004

Administrative Law Attorney, Us Army Jag Corps

2002 - 2002

Intern Prosecutor, Lane County Prosecuting Attorney

2001 - 2002

Intern Prosecutor, Us Army Jag Corps

1996 - 2000

Officer, US Army Military Police

Associations

2021 - Present

Washington Defenders Association

Member

2020 - Present

International Association of Military Criminal Defense Lawyers

Member

2019 - Present

Washington State Bar Association

Member

2003 - Present

Oregon State Bar #035465

Member

2000 - Present

American Bar Association

Member

Sample of Legal Cases

United States v. Lt Col WH, USAF

NG to 10 of 11 charges. Appeal ongoing with USAF Ct of Criminal Appeals

United States v. SGT CB, US Army

Full Acquittal: Not Guilty to all Charges and Specifications

United States v. SGT RR, US Army

Not Guilty to all contested charges, no punishment adjudged

United States v. SFC CZ, U.S. Army

Full Acquittal, NG to All Charges and Specifications

See More Legal Cases

Education

2011

US Army Command & General Staff College

Leadership

2009

US Army JAG School

LLM Military Criminal Law

2003

University of Oregon School of Law

JD - Juris Doctor

1996

Gonzaga University

BA - Bachelor of Arts Sociology and Philosophy

Speaking Engagements

2016

Military Law Section (LAMP)

Military Justice Overview and Update

Publications

2020

US Army Army Regulation 27-10 (2019 edition)

2011

TJAGLCS-ADC Crimes and Defenses Deskbook

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