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About me

I have been in practice for over 20 years and have tried hundreds of cases to verdict, representing clients in both criminal and civil matters, including but not limited to: DUI, felony and misdemeanor criminal defense,  personal injury, including automobile accidents, dog bites, slip and falls, wrongful death and medical malpractice as well as other civil litigation. I have represented both plaintiffs and defendants, as well as petitioners seeking reinstatement of their drivers licenses.


I am honored that many of my clients are referred by previous clients and fellow attorneys, and to have been rated as one of Chicago's Top Three DUI Attorneys, one of Illinois' Top Ten DUI Lawyers and one of Illinois' Top 100 Trial Lawyers.


I am a member of the Chicago Bar Association, Illinois Bar Association, the Illinois Association of Crminal Defense Lawyers and the Illinois Lawyers and Substance Abuse Counselor's Association.



Photos and videos

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Practice areas


  1. DUI & DWI: 50%
  2. Car Accidents: 20%
  3. Criminal Defense: 15%
  4. Wrongful Death: 5%
  5. Other: 10%
  6. More 



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

48 total 

Are you an attorney? Endorse this lawyer

  • Mark V. Clay

    I highly endorse Mr. Wallin. Truly exceptional and caring attorney who produces great results in representing clients! I want all people to contact him for help.


    Mark Clay Immigration Attorney
    Relationship: Fellow lawyer in community

  • Jonathan Pierre Lacour

    I endorse this lawyer. Quality representation and exceptional attentiveness to clients. One of the absolute best for DUIs.


    Jonathan Lacour Business Attorney
    Relationship: Fellow lawyer in community

Contact info

The Law Offices of Harold L. Wallin

33 N. Dearborn
Suite 502
Chicago, IL, 60602


ILActive And Authorized To Practice Law199411/12/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top 3 DWI Lawyers in ChicagoThree Best Rated2015
Top 10 DUI Lawyer in Client SatisfactionAmerican Institute of DUI/DWI Attorneys2015
Top 100 Trial LawyersThe National Trial Lawyers2015
Top 100 Trial LawyersThe National Trial Lawyers2014
BNA Law Student AwardThe Bureau of National Affairs, Inc. and Washington University School of Law1994
Work experience
TitleCompany nameDuration
OwnerThe Law Offices of Harold L. Wallin2000 - Present
AssociateRichard Cohen & Associates1995 - 2000
Association namePosition nameDuration
Illinois Association of Criminal DefenseMember2013 - Present
Illinois Lawyer & Substance Abuse Counselor AssociationMember2013 - Present
Chicago Bar Association, Judicial Evaluation CommitteeMember2003 - Present
Illinois State Bar Association, Traffic Laws and Courts SectionMember1995 - Present
Illinois State Bar Association, Tort Law SectionMember1995 - Present
Chicago Bar Association, Traffic Laws CommitteeMember1995 - Present
Illinois State Bar AssociationMember1994 - Present
Chicago Bar AssociationMember1994 - Present
Legal cases
Case nameOutcome
People v. ACNot Guilty
People v. R.D.Not Guilty
People v. ASNot Guilty
See all legal cases 
School nameMajorDegreeGraduated
Washington University School of LawLawJD - Juris Doctor1994
University of ChicagoN/ABA - Bachelor of Arts1987