Dallas DWI Attorneys

Welcome to Dallas!

Dallas, a modern metropolis in north Texas, is a commercial and cultural hub of the region. Downtown’s Sixth Floor Museum at Dealey Plaza commemorates the site of President John F. Kennedy’s assassination in 1963. In the Arts District, the Dallas Museum of Art and the Crow Collection of Asian Art cover thousands of years of art. The sleek Nasher Sculpture Center showcases contemporary sculpture.

Mimi is DWI Board certified by the NCDD


Looking for DWI Attorneys in Dallas County?

The Coffey Firm – DWI Attorneys In Dallas

Call now: 214-219-6464

Request a Free Consultation

Mimi Coffey is a DWI lawyer who is passionate about helping people who have been arrested, has dedicated her entire career to defending people accused of crimes. Although many defense lawyers have been former prosecutors, she is proud of the fact her entire career has honed in on perfecting the art of the defense. Reputation and integrity matter, Mimi has built her reputation in the legal community through many years of hard work. Alongside the years, came a wide array of factual scenarios in which to hone her craft. “I remember when a young man came to me who could not understand why his breath test was so high. Utilizing my training and research, we were able to prove his rare blood disease affected his hematocrit and therefore his breath result. No doubt, it is truly rewarding to so specialize in a field so that you can spot the outlier issues that can critically affect a case.”

She is board certified in DWI defense by the National College of DUI Defense (NCDD).

Mimi is a Regent with the National College of DUI Defense.

She is the chairman of the NCDD Forensics Committee.

Mimi has appeared as a legal commentator for CNN, national Fox News, and local Dallas/Ft. Worth stations on DWI-related stories.

She is a frequent speaker at both national and state-wide seminars. As a Regent of the NCDD, she educates lawyers across the country.

Mimi tries cases. She is an experienced attorney with a proven trial record (over 300 cases, with 80% of them being jury trials). Her successes include everything from .21 breath tests, blood tests to 3 car accident cases.

Mimi is a fighter. Her cases have made excellent case law for the State of Texas. She even sued the Texas Department of Public Safety in federal court on the Texas DPS surcharge program. When Pantego Police Department started using officers to draw blood in DWI cases, she even sued the individual officer in civil court.

She has won the President’s Heart of a Champion Award from the Texas Criminal Defense Lawyers Association (TCDLA) numerous times. She has spoken at and been the course director for mandy TCDLA DWI seminar (co chairing Mastering Scientific Evidence in New Orleans for many years).

Mimi led the effort to get the Texas Board of Legal Specialization to recognize the NCDD’s DWI Certification.

Mimi has been active over many legislative sessions in fighting bad DWI laws. Her efforts prevented the breath/blood test refusal as being a separate crime. On top of that, she has also argued for true deferred adjudication for DWI. It was her bill that was passed by State Representative Charlie Geren that entitles citizens accused to a copy of their DWI video tape, previously forbidden by law.

She has written and been published on DWI/DWI related articles four times nationally and six times statewide. She is the author of Texas DWI Defense published by Lawyers and Judges Publishing, now in its second edition. Visit her website: https://www.mimicoffey.com

The Coffey Firm Testimonials:

“The Coffey Firm staff has been absolutely wonderful. They worked so hard to help me during the worst moments of my life. They held my hand through the entire process and i knew that i could trust them to help me when i needed it the most. Thank you so much for absolutely everything that you have done for me and also my family. I highly recommend The Coffey Firm to any one needing legal assistance.  Thank you”



Major kudos to you & your exceptional team! I am so incredible impressed, your modus operandi; the swift actions & teamwork it took to make this happen so quickly and efficiently. @Steven, thank you for the after-hour, personal call to explain the details @Donna, thank you for always taking my calls having an answer; but mostly your kindness when I was in full-on freak-out mode. Your exceptional services have been invaluable to me, and I don’t know how I would have managed without your expertise. I’m so grateful to have my life back, there was no words strong enough to fully express my heartfelt gratitude! Again, thank you so very much!


“Hello Mimi….

Just a note to say…..”Thank You”….for a job well done….. From initial interview to final resolution….you and your staff were there for me at every turn. Your caring professional actions and attitudes were evident in every encounter. As your client I felt absolutely confident that I was receiving the highest quality service from people who truly cared. And, although you did not create my situation, you most certainly resolved it. So thanks, again, for all that you and your superb staff did on my behalf. Best Wishes”


“I had a great experience with the Coffey Firm. Mimi and Steve are very helpful. I am super happy with the outcome. I recommend The Coffey Firm. A Big Thank you to Mimi & Steve and all the staff”


“Mimi Coffey’s Law Firm was there for me from the beginning to the very end. Even after the case was over they still called to make sure all the details worked out. Mimi and her associates are the best in DFW for DWI/DUI cases; they serve their clients interest, and they serve the justice system at the same time. Through out my case I had so many questions, and I needed help with understanding everything going on. Mimi’s team always took their time, and kept up with my needs through the whole experience. To quote Tina Turner, they’re simply the best.”


Click here for more testimonials from The Coffey Firm