Deandra M. Grant, JD, GC, MS

Hamilton Grant Texas Attorneys at Law
Photos by Scott Peek Photography

DWI Expert. Aggressive Legal Representation. Personalized Attention.

Most people don’t dream of becoming a nationally recognized, highly lauded DWI defense attorney when they grow up. Deandra Grant, Managing Partner at Hamilton Grant Attorneys at Law, didn’t either, but participating in a mock trial in high school planted a seed that eventually set her on this path.

“It was a U.N. trial re-enactment, and I was the neutral, Swiss judge,” Deandra says. “I went home and told my parents I wanted to be a judge. When I was getting my undergraduate degree at Trinity University in San Antonio, my dad reminded me of this and suggested that I continue on to law school.”

The rest is history. Deandra earned her Juris Doctorate from SMU Dedman School of Law in 1993. During her third year in law school, she interned for the Dallas County District Attorney’s office. They hired her after she graduated, and she primarily focused on DWI cases. After a year, she opened her private law firm.

Deandra’s firm merged with another in 2018, and they acquired a third firm, creating Hamilton Grant Attorneys at Law. “Our clients benefit from the size, breadth, and depth of the Hamilton Grant team. We discuss every case at a weekly team meeting and brainstorm together. When you choose our firm, you have the experience of an entire team behind you.”

Focused on DWI Defense

Although Deandra has represented a wide range of criminal cases, today she focuses solely on the defense of intoxication-related crimes. Renowned for her extraordinary expertise inside and outside the courtroom, she is one of our nation’s premier DWI defense attorneys. Her clients also benefit from her days as a DWI prosecutor, as she is highly skilled in countering prosecutors’ evidence and strategies.

“DWI cases are some of the most challenging because of the many variables and outside factors. There’s something different every day, and clients come from all walks of life. Each client is unique, and so is their situation,” Deandra explained. She adds, “We’re seeing more cases where people are charged with DWI when they haven’t been drinking due to taking prescribed medications.”

Expanding Her Knowledge Base

As Deandra immersed herself in DWI defense, she launched a personal quest to gain scientific knowledge about alcohol intoxication and the technology used to detect it. She has spent hundreds of hours in DWI defense-related training programs and courses. With her extensive knowledge and experience, she is a national speaker and teacher on topics including DWI jury selection, cross-examination, trial skills, field sobriety tests, and forensic breath and blood alcohol testing.

Deandra’s education includes, but is not limited to:

  • A graduate certificate in Forensic Toxicology from the University of Florida’s College of Veterinary Medicine
  • A Master of Science in Pharmaceutical Science with a concentration in forensic science from the University of Florida’s College of Pharmacy
  • FSA (Forensic Sobriety Assessment)-certified
  • Completed the Intoxilyzer 5000 operator certification course, the breath-test machine formerly used in Texas
  • Completed the certification course to administer standardized field sobriety tests (SFST)
  • Completed the SFST Instructor course and has taught the SFST practitioner course to other attorneys
  • Completed coursework on DWI forensic blood and urine testing

She is a member of the American Chemical Society and the American Academy of Forensic Sciences and earned the ACH-CHAL Forensic Lawyer-Scientist designation.

She is currently the Executive Director, a Charter Member, and President-Emeritus of the DUI Defense Lawyers Association.

Recognitions and Accolades

Deandra Grant’s recognitions reflect her commitment to her career and to her clients. They include, but are not limited to:

  • Earned the ACS-CHAL Forensic Lawyer-Scientist designation in 2015
  • Included in Super Lawyers list annually since 2011
  • AV Preeminent rated by Martindale-Hubble
  • Rated AVVO 10.0 Superb
  • Named Lawyer of the Month by Attorney at Law Magazine
  • Justia 10.0 Lawyer Rating
  • Recognized by Lawyer Legion for community leadership and professional involvement
  • Named to the D Magazine Best Lawyers in Dallas

When charged with a DWI, you need an experienced, savvy, fighting team on your side. Attorney Deandra Grant and the Hamilton Grant team of lawyers have helped thousands of clients get their DWI charges reduced or dismissed. They’re ready to fight on your behalf, too.

“It’s a great day when clients reach out to me years later to tell me how well they’re doing. Knowing I helped make a difference in their lives is why I love doing what I do,” Deandra says.

Author, Speaker, Wife, Mother Oenophile, Artist, Animal Lover

Deandra is an international speaker on DWI law, science, and trial skills. She co-authored the “Texas DWI Manual,” which is updated annually. The 8th edition was released in December 2020. Her son, a high school senior, is college-bound this fall to study international business and French. Her daughter, a seventh grader, is a “computer whiz” and a cheerleader. Her husband, Eric Clendenin, is the CEO of The Ginger Grant Group.

Many of Deandra’s paintings are displayed at the Hamilton Grant offices. She has five rescue dogs and is the Vice President of Living the Doxie Dream Rescue & Sanctuary in Royse City. She hosts her own YouTube shows, “Forensics Corner” and “Wine’ing About the Law,” where she reviews wine and discusses current legal issues.


3300 Oak Lawn, Suite 700
Dallas, Texas 75219
(214) 225-7117

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