Atty. Brett Keller Duncan

Atty. Brett Keller Duncan

Brett Keller Duncan is a dedicated attorney and lifelong resident of Hammond, Louisiana, where he serves as an elected member of the Tangipahoa Parish School Board. After graduating from Hammond High, he joined the Louisiana Army National Guard, serving for a decade with the 205th Engineer Battalion, including a tour in Afghanistan during "Operation Enduring Freedom." His pride in his hometown shone through when he organized an initiative for Hammond to "Adopt" three Afghan villages, showcasing his commitment to community and country.

Hammond Hammond 21 yrs experience 21 year
Call (985) 363-9458 Book Appointment

Profile Summary

About Brett Keller Duncan at a glance

Brett Keller Duncan is an Executive Partner based in Hammond, Louisiana, practicing at Brett K. Duncan & Co., Attorneys at Law. They have 21+ years of legal experience, licensed to practice since 2005. Their practice focuses on dui/dwi, divorce, child custody, drug crimes, and criminal defense. Admitted to practice in Louisiana (2005). Educated at Louisiana State University Paul M. Hebert Law Center, Baton Rouge (J.D. Juris, 2005) and Southeastern Louisiana College (B.A. History, 1999). Recognitions include BV Distinguished. Active member of Louisiana State Bar Association 21st Judicial District Court Bar Association. Serands clients in Hammond, LA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Brett Keller Duncan is a dedicated attorney and lifelong resident of Hammond, Louisiana, where he serves as an elected member of the Tangipahoa Parish School Board
  • After graduating from Hammond High, he joined the Louisiana Army National Guard, serving for a decade with the 205th Engineer Battalion, including a tour in Afghanistan during "Operation Enduring Freedom
  • His pride in his hometown shone through when he organized an initiative for Hammond to "Adopt" three Afghan villages, showcasing his commitment to community and country
  • Brett earned numerous military honors, including the Army Commendation Medal and the Louisiana War Cross
  • He graduated cum laude from Southeastern Louisiana University with a degree in history and government, receiving the prestigious Lieu Award for academic excellence
  • After obtaining his Juris Doctor from LSU's Paul M. Hebert Law Center, he established a law practice focused on providing practical solutions for families in crisis
  • Beyond his legal work, Brett has represented over 1,000 abused and neglected children and is actively involved in community service, including organizations like the Boy Scouts and Rotary Club
  • He is married to Regina M. Lamb, and they have two children, Kendall and Robert

Practice Areas Explained

Brett Keller Duncan's Areas of Practice

Each practice area below reflects the types of cases Brett Keller Duncan handles, with a brief overview of what that area of law covers.

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Brett Keller Duncan is one of 29,976 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Louisiana →

Divorce

A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.

Brett Keller Duncan is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Louisiana →

Child Custody & Visitation

Brett Keller Duncan is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Louisiana →

Drug Crimes

Brett Keller Duncan is one of 6,966 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in Louisiana →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Brett Keller Duncan is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Louisiana →

Jurisdictional Context

Why local counsel matters in Louisiana

Practicing law in Louisiana. Legal matters in Louisiana are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Hammond are typically filed in the local municipal court or the appropriate Louisiana state district court, depending on subject matter and amount in controversy. An attorney licensed in Louisiana brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Louisiana courts without local counsel or pro hac vice admission.

Looking for additional Louisiana attorneys? Browse all attorneys in Hammond or all attorneys in Louisiana.

Frequently Asked

Common questions about Brett Keller Duncan

Where is Brett Keller Duncan's law office located?
Brett Keller Duncan's law practice is located in Hammond, Louisiana. The firm is Brett K. Duncan & Co., Attorneys at Law. You can contact the office directly through this profile page.
What practice areas does Brett Keller Duncan handle?
Brett Keller Duncan focuses on dui/dwi, divorce, child custody, drug crimes, criminal defense. Each practice area listed reflects experience handling cases of that type in Louisiana.
How long has Brett Keller Duncan practiced law?
Brett Keller Duncan has 21+ years of legal experience and has been licensed since 2005.
Where did Brett Keller Duncan go to law school?
Brett Keller Duncan earned their education at (J.D. Juris, 2005); (B.A. History, 1999).
How can I contact Brett Keller Duncan for a consultation?
You can contact Brett Keller Duncan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Brett Keller Duncan received?
Brett Keller Duncan's notable recognition includes: BV Distinguished.

Education

J.D. Juris
Louisiana State University Paul M. Hebert Law Center, Baton Rouge
- 2005
B.A. History
Southeastern Louisiana College
- 1999

Awards

BV Distinguished

Bar Admissions

Louisiana
Admitted: 2005

Reviews

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