
MANGAN LAW
Joint Base Lewis-McChord Military Defense Attorney
Your Service Deserves the Best Defense
Criminal Investigations
Administrative Investigations
Military Medical Privileging/Credentialing
Adverse Administrative Actions
Court-Martial Representation
Criminal Investigations
Administrative Investigations
Military Medical Privileging/Credentialing
Adverse Administrative Actions
Court-Martial Representation
Military Defense Lawyer Sean Mangan Protects the Rights of Service Members at Joint Base Lewis-Mcchord
Welcome to Mangan Law, where we understand the unique challenges faced by the most investigated population in America – the men and women of the United States Armed Forces. These individuals, America’s finest, uphold impeccable standards and values, yet find themselves under the scrutiny of a robust military law enforcement apparatus. At Mangan Law, we are committed to helping servicemen and women at Joint Base Lewis-McChord and the Lakewood, Tacoma, Lacey WA Areas protect their rights. We exclusively represent Uniformed Military Personnel and DOD Civilians worldwide in legal matters. Whether it’s a criminal investigation, military administrative matter or UCMJ action, we have the expertise to guide you effectively. If you have any specific questions or concerns about a military law matter, we are here to help. Contact our military defense attorneys today for a confidential, no obligation case review.

Our Legal Services from Our Military Defense Lawyers at Joint Base Lewis-McChord in the Lakewood, Tacoma, Lacey WA Areas
Military Administrative Investigations
Military administrative proceedings are ongoing virtually every day at the Joint Base Lewis-McChord in Washington. An investigation at the administrative level matters for the person facing it—there can be major ramifications for one’s career. Our military defense lawyers handle all types of military administrative issues, including:
- Command Investigations: Command Investigations are initiated by a commanding officer to address allegations of misconduct or specific issues within the unit that require fact-finding. These investigations are typically conducted to gather enough information to determine whether further disciplinary or administrative action is necessary.
- Special Purpose Investigations: Special Purpose Investigations are conducted to deal with specific, often sensitive issues that require expertise beyond standard command inquiry. For example, a special purpose investigation may be needed to assess safety protocols after a serious accident. We are prepared to help you navigate a special purpose investigation.
Military Criminal Investigations
Are you stationed at Joint Base Lewis-McChord and currently undergoing a criminal investigation? Your military career, personal freedom, and your future are all potentially on the line. Do not go up against any military law enforcement agency—whether Army CID, NCIS, Air Force OSI, Marine Corps CID, or the Coast Guard Investigative Service (CGIS)—alone. Our firm handles all types of military criminal charges, including:
- Drunk Driving
- Drug Violations
- Domestic Abuse
- Theft
- Felony Offenses
A proactive, personalized approach is key to any type of military criminal investigation. We have deep expertise in your rights and obligations under the Uniform Code of Military Justice (UCMJ). Remember, when facing a criminal charge as a military member, there are different issues at stake than for civilians. You need a lawyer who truly understands the complexities of military law.
Military Medical Provider Representation
We are proud to provide reliable, solutions-focused advocacy to military medical professionals at Joint Base Lewis-McChord in Washington State. We know that facing an adverse action can be daunting as it involves a series of procedural steps that could lead to disciplinary measures. Our Joint Base Lewis-McChord military medical provider defense lawyer takes on all types of cases, including high-stakes proceedings. We can assist you with the:
- Clinical Adverse Action Process: The Clinical Adverse Action Process is the primary mechanism in the military healthcare system that manages allegations of misconduct against medical providers. It can be used to address issues related to a medical provider’s competence or their professional conduct. In most cases, the process starts with an initial review of the allegations to determine if further investigation is warranted. If the case proceeds, it involves a thorough examination of the provider’s clinical practices. There may even be peer evaluations and possibly a formal hearing. Outcomes of this process can vary—from no action to counseling to retraining to suspension to revocation of privileges.
Adverse Administrative Actions
Our military defense lawyer for Joint Base Lewis-McChord advocates for the rights and interests of service members who are facing a risk of adverse administrative action. To be clear, this form of adverse action is not a court-martial. Instead, it is a form of punishment that can be levied under the UCMJ. Here is the key thing to know about the relevant military law:
- Article 15 of the Uniform Code of Military Justice (UCMJ): Article 15 of the UCMJ grants commanders the power to impose non-judicial punishments on service members for minor offenses. It serves as a disciplinary tool to maintain order and discipline without engaging the formal court-martial process. Possible punishments can range from a reprimand to forfeiture of pay or reduction in grade. A record of adverse administrative action can also carry serious long-term negative consequences. It could make it difficult to get promoted in the future or may even undermine your security clearance.
Court-Martial Representation
If you or your loved one is facing a court-martial at Joint Base Lewis-McChord, it is imperative that you consult with an experienced military defense lawyer right away. Sean Mangan handles all types of court-martial proceedings at Joint Base Lewis-McChord, including:
- General Court-Martial (GCM): General Court-Martial (GCM) is reserved for the most serious military offenses, such as acts of violence, gross misconduct, or breaches of national security. It is composed of a military judge and at least five panel members—though the accused can choose to be tried by a judge alone. A GCM has the power to impose the most serious of penalties, including lifetime imprisonment and even death.
- Special Court-Martial (SPCM): Special Court-Martial (SPCM) is intended for intermediate-level offenses within the military. Some offenses that are misdemeanors and even low-level felonies under civilian law are handled through an SPCM. The court is formed by a military judge and a minimum of three military members—unless the defendant opts to have their case decided solely by a judge.
- Summary Court-Martial (SCM): Under the Uniform Code of Military Justice (UCMJ), the lowest level of court-martial is called a Summary Court-Martial (SCM). It handles more minor offenses. Penalties can still be serious though—potentially including a brief period of incarceration. You can be represented by a military defense lawyer before a SCM.
Why Should Military Personnel Choose Sean Mangan?
When legal issues arise in times of career crisis, settle for nothing less than exceptional representation. This is your life and your future on the line. Opt for the best—choose Sean Mangan. He’s not your typical ex-JAG military law attorney; he’s a renowned expert in the field. With an illustrious 24-year active-duty Army career and over 30 years in law and criminal justice, Sean brings unparalleled experience. Having navigated the military and criminal justice systems at all levels, from street to courtroom, local to federal courts, Sean has a comprehensive perspective. Our legal assistance office is proactive and solutions-focused for any service member who needs assistance. Along with other things, our Joint Base Lewis-McChord military defense attorney will:
- Hear what you have to say and answer questions about your case;
- Thoroughly investigate your case, gathering all of the relevant facts from any legal documents; and
- Build a personalized strategy to help you get the best possible outcome in federal court if needed.
Sean Mangan takes an approach focused on empowering military service members. Our case results demonstrate what we can do. Our firm has helped hundreds of military members across all branches of the armed forces get favorable outcomes in cases over the past four years. He’s not just a trial attorney; he’s been on both sides, handling appeals, and presiding as a Military Judge and Magistrate. Beyond the courtroom, Sean’s background as a former law enforcement officer and Professor of Military Criminal Law at the ABA-Certified JAG School sets him apart. He has also served as a Senior Criminal Law Policy Attorney, advising Pentagon leaders. Sean Mangan’s expertise the in military justice system is truly unmatched.

For Military Justice, Contact a Military Law Expert at Joint Base Lewis-McChord Military Defense Attorney
Retaining Mangan Law is more than hiring a military defense attorney; it’s securing a dedicated ally, an experienced strategist, and a relentless advocate. We are committed to providing personalized and solutions-focused advocacy for clients. Reach out to our military defense law firm for legal assistance in Joint Base Lewis-McChord and the Lakewood, Tacoma, Lacey WA Areas. Dial (360) 908-2203 or contact us online and initial consultations are completely confidential.
Joint Base Lewis-McChord (JBLM) Facts
Joint Base Lewis-McChord (JBLM) | |
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Location | Washington state, approximately 9.1 miles southwest of Tacoma |
Formation Year | 2010 |
Previous Entities | Merged from Fort Lewis (U.S. Army) and McChord Air Force Base |
Branches Stationed | Army, Air Force, Navy, Marines |
Notable Units | 62nd Airlift Wing (Air Force), Army’s I Corps (First Corps) |
Area | 87,000 acres |
Personnel | Employs over 25,000 military and civilian personnel |
Supports | Supports over 120,000 retirees |
Function | Major training and mobilization center for all military services |
Historical Establishment | Fort Lewis was an army base founded in 1917; McChord Field was an Air Force Base founded in 1930 |
Roles in History | Played roles in WWII, eruption of Mount St. Helens, evacuation of Clark Air Base in the Philippines |
Name History | Named after 19th-century explorer Meriwether Lewis and Colonel William Caldwell McChord |
We Serve Where You Serve
Joint Base Lewis-McChord | Joint Base Elmendorf-Richardson | Fort Wainwright | Naval Base Kitsap | Joint Base San-Antonio | Fairchild AFB | Mountain Home AFB | Malmstrom AFB | USCG Kodiak | Fort Huachuca | Fort Irwin | Ellsworth AFB | FE Warren AFB | Fort Leavenworth | Fort Johnson | Fort Eisenhower | Hill AFB | Beale AFB | Minot AFB | Grand Forks AFB | Fort Liberty | Fort Cavazos | Fort Riley | Fort Stewart | Fort Moore | USCG Sector Puget Sound | Fort Carson, Peterson SFB, Air Force Academy | Wright-Patterson AFB | Military District of Washington
Have a question?
Military Criminal Investigations
“I highly recommend Sean! I was falsely being accused of numerous things from the Army CID and he represented me in the best way possible. He stayed on top of the situation and made sure to stay in contact often updating me along the way. He absolutely took all the stress off my shoulders and reassured me he’s there for every step along the way. If you’re in the military and need legal representation I 100% recommend Sean. He went above and beyond to make sure all needs were met.”
“BEAST IN THE COURT ROOM”
Truly the best! Before we hired Sean, we thought our son’s future was over. Sean was an absolute beast in court room defending our son against the Government! His knowledge and commitment to his clients are remarkable and worth every penny! I’m thankful that we made the decision to hire Sean when we did.
Mangan Law
The Law Offices of Sean F. Mangan, PLLC
Proactive intervention early to favorably resolve cases without litigation or formal action
Aggressive and advanced pretrial and trial litigation tactics
Master Military Justice Practitioner
Unmatched diversity of experience, having handled criminal cases from every angle
Respected
standing with all military services
I am ready to fight for you!
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