The The Law Office of Sean Flood PLLC Team

Founding Attorney Sean Flood

Attorney Sean Flood is an experienced military criminal defense attorney and the founder of The Law Office of Sean Flood PLLC. Mr. Flood represents clients at Fort Campbell, KY, as well as those located in Clarksville, TN and on military bases throughout the United States and the world. At the firm, he focuses his practice on all aspects of military criminal defense law, handling complex cases involving officer misconduct, sex crimes, drug offenses and urinalysis, appeals, administrative investigations, and more. Mr. Flood uses his considerable skill and inside knowledge of the system in order to build powerful legal defenses on behalf of his clients.

Born and raised in Des Moines, IA, Mr. Flood moved to Worcester, MA after graduating high school in order to attend the College of the Holy Cross. There, he double-majored in history and political science and served on the Judicial Council of the Student Government Association. He also earned a varsity letter in Division I Indoor and Outdoor Track and Field and, in his senior year, became captain of the track team. During his undergraduate years, Mr. Flood embodied the student athlete ideal, consistently making both the Dean’s List and Patriot League Academic Honor Roll.

Following the completion of his undergraduate studies, Mr. Flood spent a year waiting tables and bar-backing in Boston before going on to attend law school at Creighton University in Omaha, NE. After one year at Creighton University, he transferred to Drake University Law School in Des Moines. There, he served as a student law clerk for the United States Attorney’s Office of the Southern District of Iowa and, later, as a certified student attorney in the Drake University Legal Clinic: Advanced Criminal Defense Clinic – Trials. At the Drake University Legal Clinic, Mr. Flood represented real clients in misdemeanor cases in the Iowa court system and discovered his passion for criminal law.

During his time in law school, Mr. Flood wrote for the prestigious Drake Law Review as a junior staff member. Further, as part of his affiliation with the organization, the Drake Law Review published his Note on the federal enforcement of illegal immigration in the State of Iowa in 2009. Throughout his years in law school, Mr. Flood was also active with the American Bar Association – Law School Division.

In May of 2009, Mr. Flood graduated Drake University Law School with honors. Prior to passing the Illinois state bar exam, he served as Special Assistant Corporation Counsel at the City of Chicago Department of Law: Torts Division for the people of Chicago. There, he represented and defended the City of Chicago and its employees in lawsuits involving negligence and intentional tort claims. He obtained invaluable experience in drafting pleadings, handling dispositive motions, researching memoranda, and conducting depositions. His first jury trial even took place at the famous Daley Center in downtown Chicago.

While he was still in law school, Mr. Flood was selected by the United States Army for a commission into the Judge Advocate General’s Corps. He received his commission in October of 2010 and successfully completed the Judge Advocate Officer Basic Course at the Judge Advocate General’s Legal Center and School in Charlottesville, VA in February of 2011 and graduated from the Basic Officer Leadership Couse at Fort Benning, GA. While en route to his first duty station, Mr. Flood completed the Sabalauski Air Assault School at Fort Campbell, KY, earning the Air Assault Badge.

In April 2011, Mr. Flood arrived at the I Corps Office of the Staff Judge Advocate at Joint Base Lewis-McChord, Washington. His leadership assigned him to run the installation’s two tax centers for redeployers, as well as for the 2012 tax centers. Mr. Flood successfully led—with an amazing team of noncommissioned officers—a team over 25 soldiers to complete over 8,500 federal and state tax returns, generated over $16,650,000 in refund, and saved the installation’s client base over $1,325,000 in preparation fees. On top of his tax center duties, Mr. Flood also completed legal assistance duties, including drafting General Officer Memorandum of Reprimand (GOMOR) and Financial Liability Investigations of Property Loss (FLIPL) rebuttals, and provided legal advice to service members and their dependents.

Mr. Flood’s leadership then assigned him to work in the Administrative Law Section of the I Corps Office of the Staff Judge Advocate. As an administrative law attorney, he served as a legal adviser to commanders within I Corps on investigations into senior leader misconduct, line of duty determinations, property loss, issues involving sexual harassment and equal opportunity violations, and death and suicide investigations. Mr. Flood also advised on Article 32 investigations prior to the revision of Article 32, and he also served as one of the first judge advocate preliminary hearing officers under the revised Article 32. He also took on additional duties as a part-time military magistrate, authorizing search authorizations upon probable cause and hearing cases regarding pretrial confinement for soldiers accused of court-martial offenses. Mr. Flood’s time as an administrative law attorney provided a solid foundation of knowledge regarding how the Army operates—lessons he took into his next position.

Mr. Flood left I Corps and transferred to the newly reactivated 7th Infantry Division in November of 2013. There, he served as a trial counsel (prosecutor) for the 16th Combat Aviation Brigade, an aviation unit that consisted of over 3,000 soldiers. A few months after he arrived, Mr. Flood deployed with the 16th Combat Aviation Brigade to Afghanistan as part Operation Enduring Freedom. While continuing on with his trial counsel duties, Sean also advised on the Rules of Engagement, Law of Armed Conflict, and other operational law categories for his brigade, which included AH-64E Apaches, in strikes against the Taliban. As a trial counsel, Mr. Flood’s case load included cases involving accusations of murder, rape, theft of military property, drug possession and dealing, assault, and military offenses.

In July of 2015, Mr. Flood’s next assignment took him to Trial Defense Service, Fort Campbell Field Office at Fort Campbell, KY as a trial defense attorney where his passion for representing soldiers through the military justice process thrived. Roughly three weeks after his arrival at Fort Campbell, he tried his first court-martial as a defense counsel. Throughout his time at the Trial Defense Service, Mr. Flood engaged in extensive courtroom litigation including motions practice, voir dire, cross examination, opening statements, and closing arguments. His caseload covered accusations of murder, rape, sexual assault, child rape and sexual assault, child pornography, drug use and possession, aggravated assault, assault consummated by a battery, and absence without leave. Although focused on the primary mission of courts-martial, Mr. Flood assisted and represented hundreds of soldiers throughout the region, including those at Fort Polk and Fort Rucker, with administrative separation actions and boards, non-judicial punishment, adverse administrative actions and investigations, and suspect rights advisements.

Following his time at the Trial Defense Service, Mr. Flood was assigned to 3rd Battalion, 5th Special Forces Group (Airborne). After completion of Airborne School at Fort Benning, GA in July of 2017, he deployed with his unit to Northern Syria to help fight the Islamic State. Mr. Flood advised on the Rules of Engagement, the Law of Armed Conflict, and other operational law issues, including partner force operations. He also advised on complex fiscal law issues relating to the National Defense Authorization Act and the Counter-ISIS Train and Equip Fund.

Following redeployment, Mr. Flood taught a two-hour block of instruction on partner force operations and the application of the Rules of Engagement at the Army’s Judge Advocate General’s Legal Center and School to other judge advocates in all branches of the armed forces. Mr. Flood also once again took on military justice actions as a prosecutor. Mr. Flood deployed again to Northern Syria and advised his commanders in their fight against their eventual victory against the Islamic State and destruction of its caliphate. As of this date, Mr. Flood has more time serving in Syria than any other judge advocate.


  • College of the Holy Cross: Bachelor of Arts, History and Political Science, 2005
  • Drake University Law School: Juris Doctor, 2009
  • License: Illinois (2009), Iowa 2010 (2010 – inactive)

Military Training

  • Judge Advocate Officer Basic Course (2011)
  • Basic Officer Leadership Course (2011)
  • Air Assault School (2011)
  • New Prosecutor’s Course (2014)
  • Intermediate Trial Advocacy Course (2015)
  • Advanced Trial Advocacy Course (2016)
  • Defense of the Damned, Trial Lawyer’s College (2016)
  • Airborne School (2017)
  • Intelligence Law Course (2018)


  • Of I.C.E. and Mens Rea: Illegal Immigration and the Knowledge Requirement of the Identity Theft Penalty Enhancement Act, 58 DRAKE L. REV. 323 (2009)