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Marcos M. Garza

also known as Marcos Garza

About me

Mr. Garza is a native of East Tennessee.  He is a graduate of Vanderbilt University.  He obtained his Masters of Science from the University of Tennessee and his Juris Doctorate degree from the University of Tennessee College of Law.  Marcos M. Garza of the Garza Law Firm, PLLC is best known for his defense of those accused of DUI, criminal charges and for his representation of individuals who have suffered serious personal injury. 

In 2010 through 2014, Marcos Garza was one of only four lawyers in the states of Arkansas, Tennessee and Mississippi, under the age of 40 to be selected as a “Mid-South Super Lawyer Rising-Star,” in the area of DUI/DWI Defense, a distinction given to the top 2.5% of all lawyers under the age of 40 or in the first 10 years of practice. Mr. Garza has consistently been recognized in CityView, Newsweek, Forbes  and Time magazines for his accomplishments as an outstanding attorney. Mr. Garza has also been recognized as one of the top 40 trial lawyers under 40 years of age in the state of Tennessee, as selected by the National Trial Lawyers Association, and was also selected as one of their top 100 trial lawyers. He has also been rated AV-Pre-eminent, the highest distinction given by the distinguished Martindale attorney rating system.

Mr. Garza lectures both in the state of Tennessee and nationally in the areas of Criminal Defense, DUI and trial skills. Mr. Garza has literally attended hundreds of hours of legal and scientific education related to the defense of the citizen accused and prides himself in staying on the cutting edge of trial techniques and the underlying law and science that is necessary to effectively defend those accused of crime or those who have suffered serious personal injury. Mr. Garza is trained in the science and techniques of Gas Chromatography (the method used to test drugs and alcohol in the blood), the EC/IR II breath testing device and is both a student and Instructor of the Standardized Field Sobriety Tests, Advanced Roadside Impaired Driving Enforcement (ARIDE) and Drug Recognition Expert (DRE) courses.


Mr. Garza is also a graduate of the prestigious National Criminal Defense College (NCDC) in Macon, Georgia and a graduated of the well-respected Gerry Spence Trial Lawyers College® in Dubois, Wyoming, an intensive 24-day trial skills college.


After a tour as a Judge Advocate and Captain in the United States Marine Corps, Mr. Garza returned to practice law in his home of East Tennessee.  He routinely travels across East Tennessee handling criminal and personal injury cases for a relatively small number of clients.  Marcos Garza is committed to handling fewer cases in the areas of Criminal, DUI and Personal Injury law in order to achieve the best results possible.  This system enables Mr. Garza to get to know his clients personally and thoroughly, and he believes this not only produces better results but is also a more rewarding way of practicing law.  He is available during the week and on weekends for free consultations.  Mr. Garza is a husband and father of four young children and enjoys running and charcoal grilling on the weekends.


Photos and videos

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Practice areas


  1. DUI & DWI: 70%
    16 years
  2. Motorcycle Accident: 10%
    16 years
  3. Car Accident: 10%
    16 years
  4. Criminal Defense: 10%
    16 years



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

78 total 

Are you an attorney? Endorse this lawyer

  • Charles Jason London

    Marcos Garza is a very rare attorney whose great talent is evidenced by his ability to balance the multitude of different factors that must come together to make a great lawyer. His top notch results and amazing courtroom advocacy truly reflect his skill, intelligence, caring that he fully devotes to his clients and their issues.


    Charles London Litigation Attorney
    Relationship: Fellow lawyer in community

  • Raymond Garth Best

    If you have a DUI in the Knoxville area and need a proficient criminal defense attorney, Marcos Garza is an excellent advocate for your case.


    Raymond Best DUI and DWI Attorney
    Relationship: Fellow lawyer in community

Contact info

Garza Law Firm, PLLC

550 W. Main Street, Suite 340
Bank of America Building
Knoxville, TN, 37902-2515


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top 100 Trial LawyersNational Trial Lawyers2015
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2015
Ultimate Trial Advocacy CourseAmerican Association for Justice2014
Driving Under the Influence of Drugs Course IIIAmerican Chemistry Society2014
14 Best Criminal Defense LawyersNewsweek Magazine2014
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2014
Rising StarMid-South Super Lawyers2014
Top 100 Trial LawyersNational Trial Lawyers2014
Forensic Lawyer-ScientistAmerican Chemistry Society2014
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2013
Spence Trial Lawyers College 3-Week CourseGerry Spence Trial Lawyers College2013
Forensic Chromatography: Solid Drug Dose TestingAxion Analytical Laboratories, Inc.2013
2013 Standardized Field Sobriety Tests UpdateImpaired Driving Specialists, LLC2013
Rising StarMid-South Super Lawyers2013
Top 100 Trial LawyersNational Trial Lawyers2013
Hands-On DNA Analysis CourseDr. Greg Hampikian, Justin McShane & Josh Lee2013
Legal Leaders - Tennessee's Top Rated Lawyers of 2013Martindale-Hubbell2013
Leading Criminal Defense AttorneysNewsweek Magazine2013
Rising StarMid-South Super Lawyers2012
AV Preeminent 5.0 out of 5 Peer Review RatedMartindale-Hubbell2012
Top LawyersCityView Magazine2012
Pharmacology/Toxicology Principles - DUI-D & Drug CasesScientific Law Forums, Inc.2012
Top 40 Under 40National Trial Lawyers2012
Learning at the Footsteps of the Master - Cross ExaminationTerry MacCarthy & Josh Lee2011
Rising StarMid-South Super Lawyers2011
Outstanding LawyersNewsweek Magazine2011
Featured Tennessee Legal ProfilesForbes Magazine2011
Forensic Gas Chromatography CourseAmerican Chemical Society-Axion Labs-Drs. Harold McNair & Lee Polite, Justine McShane & Josh Lee2011
Drug Recognition Expert Course OverviewImpaired Driving Specialists, LLC2010
Intoximeter EC/IR II Breathalyzer Device CourseArkansas Association of Criminal Defense Lawyers2010
Advanced Roadside Impaired Driving Enforcement CourseImpaired Driving Specialists, LLC2010
Multi Device Breath Testing Mega-CourseGeorgia Defense of Drinking Drivers2010
Behind the Secrets of Highway Drug Interdiction SeminarImpaired Driving Specialists, LLC2010
Forensic Chromatography CourseAmerican Chemical Society2010
"Taking Care of Business" (DUI Seminar)Tennessee Association of Criminal Defense Lawyers2010
Rising StarMid-South Super Lawyers2010
Standardized Field Sobriety Test InstructorImpaired Driving Specialists, LLC2009
National Trial Practice InstituteNational Criminal Defense College2008
Standardized Field Sobriety Test Training CertificateLaPier & Associates2008
Leadership LawTennessee Bar Association2008
Navy & Marine Corps Achievement MedalUnited States Marine Corps2004
Global War on Terrorism Service MedalUnited States Marine Corps2004
Captain, Judge AdvocateUnited States Marine Corps2004
National Defense Service MedalUnited States Marine Corps2003
Work experience
TitleCompany nameDuration
OwnerGarza Law Firm, PLLC2007 - Present
AssociateThe Law Offices of James A.H. Bell, P.C.2005 - 2007
OwnerMarcos M. Garza, P.C.2005 - 2005
Officer, Judge AdvocateU.S. Marine Corps1999 - 2005
Association namePosition nameDuration
Tennessee Association of Criminal Defense LawyersBoard Member2012 - Present
National College of DUI DefenseSustaining Member2012 - Present
Tennessee Association for JusticeBoard Member2010 - Present
National Association of Criminal Defense LawyersLife MemberN/A
American Bar AssociationMemberN/A
Sevier County Bar AssociationMemberN/A
Tennessee Bar AssociationMemberN/A
Knox County Bar AssociationMemberN/A
American Association for JusticeMemberN/A
American Chemistry SocietyMemberN/A
Legal cases
Case nameOutcome
DUI & Possession of a Handgun while impairedReckless Driving
.20 Blood Alcohol, Poor performance on Field Sobriety Tests, Stumbling in Parking LotDismissed Upon Payment of Court costs
Client passed out at red light with throw up on pants with blood alcohol test of .09.Reckless Driving
See all legal cases 
Publication nameTitleDate
TN DUI BookTN DUI Handbook2014
TN Criminal Law HandbookTN Criminal Law Handbook2013
CityView MagazineThe Dilemma About Field Sobriety Tests2011
Knoxville's CityView MagazineWalking the Line2010
What to Do If Your Pulled Over Or Arrested For DUI
Knoxville Bar Association DictaWhat It Means to Be a Lawyer2008
School nameMajorDegreeGraduated
University of Tennessee College of LawN/AJD - Juris Doctor2001
University of TennesseeSocial WorkMaster of Science in Social Work1998
Vanderbilt UniversityPsychologyBS - Bachelor of Science1996
Speaking engagements
Conference nameTitleDate
TACDL Annual DUI Defense ConferenceImplied Consent and other DUI Defense Issues2014
Smoky Mountain Paralegal Association Annual SeminarThe CSI Effect: All the bloody details about Blood Testing, Breath Testing & Field Sobriety Testing2014
Knox County Public Defenders Office TrainingPreparing the DUI Case2014
DUI Seminar - Cobb County Bar AssociationDrug Recognition Expert Cross Examination Attacks2014
TACDL's 6th Annual DUI Seminar & Training20 Ways to Win a DUI Case2013
TACDL General Sessions Court TrainingPreliminary Hearings2013
Ohio Assoc. of Criminal Defense Lawyers Advanced DUI ConferenceDebunking the Drug Recognition Expert2013
Arkansas Association of Criminal Defense Lawyers Annual Seminar20 Trial Tips for DWI Winning2013
2013 DUI Conference Breckenridge CODrug Recognition Defense2013
TACDL'S DUI 2012 Seminar & TrainingDemystifying the Drug Recognition Evaluator2012
TACDL's 2011 DUI TrainingDrugged Driving2011
Standardized Field Sobriety Test CourseNHTSA's Standardized Field Sobriety Tests2010
Strategies in Defending DWI and DUI CasesDUI/DWI2009
Planning your future as a legal professionalPlanning your legal profession2009