Special Thanks to TCDLA's Course Directors


John Convery, San Antonio

John A. Convery is a partner in the San Antonio firm Hasdorff & Convery, P.C., and a graduate of The Catholic University of America (1979), and St. Mary's University School of Law (JD 1983). John is a specialist in criminal law, board certified by the Texas Board of Legal Specialization, representing individuals and business entities at trial and on appeal in federal, military, and state courts in Texas and elsewhere. He was an associate lawyer with Goldstein, Goldstein & Hilley in San Antonio, and with Alter & Cohen in Frankfurt, Germany, defending active duty military personnel as civilian counsel in courts-martial and administrative hearings throughout Europe.

Deandra Grant, Dallas

AV-rated attorney, Deandra Grant, is a Partner at Hamilton Grant PC and her practice is focused on DWI defense in Texas. A graduate of Trinity University in San Antonio and Southern Methodist University’s School of Law, she is a national speaker on DWI law and science and the co-author of the annually updated book, The Texas DWI Manual (James Publishing), Texas DWI: Truth & Consequences and Surviving Your Texas DWI. Deandra is a Standardized Field Sobriety Testing Instructor and has completed the Drug Recognition Overview course. She was the first attorney in Texas to pass the Forensic Sobriety Assessment Certification exam. In addition, she has completed coursework in DWI forensic blood and urine testing and was trained as an operator and maintenance technician of the Intoxilyzer 5000. 

David Guinn Jr, Lubbock

David M. Guinn Jr. is a partner at Hurley & Guinn. He has extensive experience representing citizens accused of criminal wrongdoing. His experience includes successful representation of individuals in trial and appellate courts at both the federal and state level. David earned both his undergraduate and law degrees from Baylor University. After graduating law school in 1989, he spent three years as an assistant district attorney for Johnson and Somervell Counties. David maintained a private practice in Crane, Texas until 1996 when he joined the Federal Public Defender’s Office for the Northern District of Texas—Lubbock Division.  In 1999, he joined his law school classmate Ruben Reyes and long-time colleague Daniel Hurley to form Hurley, Reyes & Guinn.

Carmen Roe, Houston

For the past 10 years, Carmen has owned her own law firm in downtown Houston, where she specializes in criminal defense and appeals, in both state and federal court. Carmen is board certified in criminal appeals by the Texas Board of Legal Specializations. Carmen was elected for the Board of Directors for the State Bar of Texas from 2018-2021. She is a past president of the Harris County Criminal Lawyers Association, on the board of directors for the Texas Criminal Defense Lawyers Association, and is a continuing member of several local, state, and national criminal bar associations. Ms. Roe was named a 2014-2015 Texas Super Lawyer Rising Star, a 2015 State Bar of Texas Fellow, and a 2015-2018 Texas Super Lawyer. Carmen is also a legal analyst for national and local news.