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About me

Greg is a Superlawyer that is willing to go to jail to protect his clients.  In 2003, he spent four days in jail to protect a client from an unfair judge (the judge lost his job soon after this).  Greg won the trial after the judge was replaced.  Greg has the most advanced training on DUI's available.  A free consultation with Greg is priceless to your case. Greg regularly challenges the accuracy of both breath and blood tests and is recognized for exposing weaknesses in the forensic science used in breath and blood testing. Greg as recently as February of 2015, received a favorable ruling from the Supreme Court of Georgia that could affect the admissibility of breath tests in Georgia moving forward.  Due to his success in court and his appeals, Greg has been recognized as one of the top DUI lawyers in Georgia and the United States.  In addition to the most recent case, Greg has successfully appealed numerous other cases to Georgia’s highest court and has petitioned the United States Supreme Court in numerous cases.  Greg Willis graduated from the University of Georgia Law School in 1996. Since then, he has dedicated his legal career to defending Georgia residents accused of DUI and possession of drugs.  Greg is a member of the State Bar of Georgia, the National College of DUI Defense, and Georgia Association of Criminal Defense Lawyers. 



Languages spoken: Spanish, English

Photos and videos

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Practice areas


  1. DUI & DWI: 100%
    20 years, 2.5 thousand cases



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

33 total 

Are you an attorney? Endorse this lawyer

  • Timothy Raymond Bussey

    I met Greg Willis at legal seminars throughout the country. As the years passed I began to stay in contact with Greg. Greg is a masterful attorney and well respected by his peers. The man knows his stuff! I fully endorse Greg.


    Timothy Bussey DUI and DWI Attorney
    Relationship: Fellow lawyer in community

  • Patrick Applegate Kunes

    Greg is a rare type of lawyer that will relentless fight for his clients, even if the State is pulling punches and making it very difficult for him. He leads the charge in Georgia (with his Parker v. State appeal) in trying to acquire crucial "source code" data from breath-testing machine manufacturers. His fight affects not just his client, but ALL persons accused of DUI in Georgia. His noble attempt to level the playing field is commendable, and his dedication to clients is unmatched.


    Patrick Kunes DUI and DWI Attorney
    Relationship: Fellow lawyer in community

Contact info

Thomas, Webb & Willis, LLC

750 Hammond Drive, Suite 5-100
Atlanta, GA, 30328


GAActive Member in Good Standing 199608/05/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Clients' Choice Award - DUIAVVO2015
Super LawyerSuper Lawyers Magazine2015
Super LawyerSuper Lawyers2014
Client's Choice Award - DUIAVVO2014
Super LawyerSuperLawyers2013
Appellate Lawyer of YearDefese Drinking Driver's Network2012
Rising Star Award 2010Superlawyers2010
Rising Star Award 2009Superlawyers2009
Samurai Lawyer AwardDefense of Drinking Driver's Network2003
Work experience
TitleCompany nameDuration
PartnerThomas Webb and Willis LLC2015 - Present
PartnerHead Thomas Webb and Willis LLC1995 - 2015
Association namePosition nameDuration
DUI Defense Lawyers AssociationMember2015 - Present
National College of DUI DefenseMember1999 - Present
State Bar of GeorgiaMember1996 - Present
Georgia Association of Criminal Defense LawyersMember1996 - Present
National Association of Criminal Defense LawyersMember1996 - Present
Georgia Defense of Drinking Drivers NetworkMember1996 - Present
Legal cases
Case nameOutcome
DUI reduced to lesser chargeDUI reduced to reckless driving charge
DUI jury trial winClient found not guilty
Not Guilty on 0.142 Test CaseDefendant was found not guilty of the DUI and guilty of failure to maintain lane.
See all legal cases 
School nameMajorDegreeGraduated
National College of DUI DefenseCompletedMastering Scientific Evidence Seminar 20112011
Drug Recognition Expert Overview CourseN/ACompleted2004
NHTSA Standardized Field Sobriety Training Instructor Training CourseN/ACompleted2000
Intoxilyzer 5000 (Georgia's state breath test) Instructor CourseN/ACompleted1999
Intoxilyzer 5000 (Georgia's state breath test) Student CourseCompletedN/A1997
NHTSA Standardized Field Sobriety Student TrainingN/ACompleted1996
University of Georgia School of LawLawJD - Juris Doctor1996
University of VirginiaN/AN/A1992
Speaking engagements
Conference nameTitleDate
ICLE Georgia DUI UpdateDUI - Defending Blood Test Cases2015
Defense of Drinking Drivers InstituteThe Intoxilyzer 5000 Source Code Quandary: Can Anyone Get An Out Of State Subpoena After Cronkite?2013
Defense of Drinking Drivers InstituteProbable Cause Hearings: Your Best Opportunity To Win The Unwinnable Case2012
Defense of Drinking Drivers InstituteGeorgia's Source Code Breath Test Cases: Is Any Per Se Case Not Worth A Subpoena?2011
Handling Administrative Driver's License Suspensions and RevocationsCross Examination Under The Micro "Scope" - Cross-Examining the Arresting Officer Within the Scope of the Hearing2007
Defense of Drinking Drivers InstituteIn DUI Practice, Can You Be Held In Contempt?2004
Administrative License Revocation and SuspensionsReasonable Suspicion v. Probable Cause2004
Handling Administrative License Suspensions and RevocationsPost-Hearing Remedies2002
Defense of Drinking DriversOpening Statement: Selling Your Theme Through Telling A Story1999