DWI Lawyer-Trichter & LeGrand Law Firm


Trichter & LeGrand combines professional, aggressive criminal defense with caring, understanding legal counsel. This winning combination gives clients peace of mind that their cases are in the hands of a capable Texas DWI Lawyer. The firm was founded by Houston DWI lawyer J. Gary Trichter, a DWI Specialist by the NCDD and recognized in the field of driving while intoxicated (DWI), driving under the influence (DUI), boating while intoxicated (BWI), and flying while intoxicated (FWI) defense.

Gary Trichter DWI Specialist

Gary Trichter has been practicing law in the state of Texas since 1980 and is Founder and Past-President of Texas DWI Lawyers (formerly Texas DWI Defense Lawyers Association). Gary has also served as president of the Texas Criminal Defense Lawyers Association (TCDLA) from June 2011 through June 2012. He was the 1st DWI Specialist in the State of Texas and one of only four defense lawyers who has earned the designation by the National College for DUI Defense. 


Leslie LeGrand DWI Lawyer

Leslie LeGrand, a partner, is a Houston DWI lawyer and native Houstonian who was born into the legal profession. He has become a four-time recognized Rising Star of DWI Defense Attorneys by Super Lawyers, a Thomson Reuters Service, (2011-2014) and has been recognized Super Lawyers, a Thomson Reuters service, 2014-2017. He is board-certified in Criminal Law by the Texas Board of Legal Specialization (TBLS) and has been asked to lecture at numerous DWI seminars.


Aaron White DWI Lawyer

Aaron White is a DWI defense lawyer based in Houston, Texas, & a former Harris County felony & misdemeanor court prosecutor. As a prosecutor, he screened misdemeanors and felonies of all levels, evaluated and prosecuted cases including more than 20 felony trials. He also played an integral part in reconfiguring the Harris County post-conviction review division. Aaron graduated Law School from Georgia State University in 2007 and found his way to Trichter & LeGrand.


Greg Houlton DWI Lawyer

Gregory J. Houlton is a former lead prosecutor with the Harris County District Attorney’s office where he had served as District Court Chief responsible for supervising a team that handles more than 1,000 criminal cases at any given time. During his tenure as an Assistant District Attorney, he tried more than 50 jury trials including capital murders, murders, adult and child sexual assaults, aggravated robberies, large quantity drug possession cases, and DWIs. Greg received his J.D. from the South Texas College of Law. He also holds a Bachelor’s of Science degree in Business Marketing.


Tracy McMickle Legal Assistant

Tracy McMickle

Legal Assistant

Tracy McMickle was born in Alvin, Texas where she graduated high school in 1994. She briefly attended Alvin Community College but left to pursue paralegal studies at the Center for Advanced Legal Studies in Houston where she obtained her Associates Degree in Applied Science in paralegal studies in 1998. She has been working for Gary Trichter since she graduated with over 20+ years experience as a paralegal.


Alyssa Wernli Legal Assistant

Alyssa Wernli

Legal Assistant

Alyssa was born and raised in Houston, Texas. After graduating high school, Alyssa studied at San Jacinto College, where she earned an Associate of Art’s Degree in Business Administration. She currently attends the University of Houston, where she will graduate with a B.S. in Economics with a Minor in Law, Values, and Policy. After graduation, Alyssa plans to attend professional school to further her career in law. 


MacKenzie McWilliams Legal Assistant

MacKenzie McWilliams

Legal Assistant

Mackenzie was born in Houston, Texas and was raised in Vancouver, Washington before returning to Houston in 2011. She graduated from Center for Advanced Legal Studies with a Paralegal Certification. Mackenzie assists the firm’s attorneys in scheduling court appearances, handles court documents of varying importance, and corresponds with clients, opposing counsel, and governmental agencies. Currently enrolled at Sam Houston State University for her Bachelors in Political Science.


Jeanette Huezo Legal Assistant

Jeanette Huezo

Legal Assistant

This is where you need to write your short bio about who you are and where you come from so it can be posted right here on the DWI Legal Team web page of our website. This is where you need to write your short bio about who you are and where you come from so it can be posted right here on the DWI Legal Team web page of our website. This is where you need to write your short bio about who you are and where you come from so it can be posted right here on the DWI Legal Team web page of our website.


Sydney Receptionist


Receptionist/Front Desk

Sydney was born and raised in Houston, Texas and has been working at Trichter and LeGrand for 2 years. She assists callers from all over Texas in need of a DWI or Criminal Defense attorney. With many years of experience as a receptionist she will leave you with a smile on your face, feeling confident you received the customer service you deserve.



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