The Definitive Guide to Federal Criminal Defense in the Northern District of Texas: An Investigative Masterclass
If you are reading this, you are likely in the crosshairs of the United States government. This is not...
Prior to cofounding GreenClark PLLC, Jeff was a solo practitioner focused on plaintiffs litigation and federal criminal defense. Before his legal career however, Jeff was a Special Agent for the Federal Bureau of Investigation. He was a member of New Agent Class 08-04 at Quantico, where his classmates elected him to deliver the class speech at graduation. Jeff then spent over seven years working in the FBI’s Criminal Investigative Division and was the lead case agent on numerous complex investigations involving drug trafficking, money laundering, and civil and criminal asset forfeiture. Jeff brings a deep investigative approach to each of the firm’s cases and his federal law enforcement experience uniquely positions him to uncover helpful facts for the firm’s civil and criminal litigation clients.
Jeff earned his bachelors and masters degrees in accounting in 1996 from the University of Texas at Austin, where he was a Sommerfeld Scholar and Dean’s Award recipient. In 1999, Jeff published one of the internet’s first travel blogs during a five-month backpacking journey through Europe, South America, and Asia. Jeff obtained his law degree from the SMU Dedman School of Law, where he received a full-tuition merit scholarship as a Sumners Scholar and graduated with high honors in the top 10% of his law school class.
Jeff is an adjunct professor of law at SMU, where he coteaches the Police Misconduct Litigation course with Don Tittle. Also, Jeff has been a Texas Certified Public Accountant for over twenty-five years. Prior to working for the FBI, Jeff had an extensive career in the corporate business sector where he held positions as a hedge fund analyst, a corporate controller, and the Chief Financial Officer of a publicly traded biotechnology corporation. Jeff’s extensive financial, accounting, and investment expertise make him a highly knowledgeable advocate for clients seeking monetary compensation for their injuries and for clients facing white collar criminal charges and SEC investigations.
SMU Dedman School of Law
Juris Doctor, magna cum laude
The University of Texas at Austin
MPA and BBA in Accounting
SMU Dedman School of Law, Adjunct Professor
Bar Admissions
Court Admissions
Patrick E. Higginbotham Inn of Court, Member (2018, 2019, 2020).
The Judge Sarah T. Hughes North Texas Federal Criminal Law Inn of Court, 2022–present.
Mock Trial Coach, Barack Obama Male Leadership Academy, DISD September 2023–present.
Pickleball
Brazilian Jiu-Jitsu
Tennis
1980's Hair Metal Bands







If you are reading this, you are likely in the crosshairs of the United States government. This is not...
When the "War on Drugs" Comes for Your White Coat For decades, the "War on Drugs" was fought on...
Beyond the Settlement: Why Complex Injuries in North Texas Require a Trial-Ready Approach By Stephen Green & Jeff Clark...