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About me

I completed the NHTSA/IACP Standardized Field Sobriety Testing Practitioner Course taught by Walden, Platt & Associates in 2008. I am also a KCMBA Mentor Attorney in the area of criminal defense.


Practice areas


  1. Criminal Defense: 45%
  2. DUI & DWI: 25%
  3. Juvenile: 20%
  4. Speeding Ticket: 10%



Free consultation (60 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

9 total 

Are you an attorney? Endorse this lawyer

  • Brian William Costello

    I endorse this lawyer. I have known Courtney for more than a decade and value his advice and I regularly seek his opinions on anything related to Kansas Law.


    Brian Costello Criminal defense Attorney
    Relationship: Worked together on matter

  • Michael S. Waddington

    I endorse Courtney. He is a highly skilled attorney that is well respected in the legal community.


    Michael Waddington Military law Attorney
    Relationship: Fellow lawyer in community

Contact info

Billam & Henderson, LLC

108 E. Poplar, Suite B
Olathe, KS, 66061

1012 Massachusetts, Suite 214
Lawrence, KS, 66044



MOGood Standing, Active200401/08/2013
KSAuthorized to practice law200307/04/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Preeminent 4.7 out of 5.0Martindale-Hubbell2016
Top 100 Trial LawyersNational Trial Lawyers2016
Top 40 Under 40National Trial Lawyers2016
Nation's Top One PercentNational Association of Distinguished Counsel2016
Top LawyerThe Global Directory of Who's Who2015
Nation's Top AttorneysThe National Association of Distinguised Counsel2015
Top 40 under 40National Trial Lawyers Association2015
Top 100 Trial LawyersNational Trial Lawyers2015
Top 100 Trial LawyersNational Trial Lawyers2014
Top 40 Under 40National Trial Lawyers2014
Top 40 Under 40National Trial Lawyers2013
Super LawyerSuperLawyers2013
Rising StarSuper Lawyers2012
Top 40 Under 40National Trial Lawyers2012
Rising StarSuper Lawyers2011
Work experience
TitleCompany nameDuration
PartnerBillam & Henderson, LLC2005 - Present
Assistant Public DefenderJohnson County Public Defender's Office2004 - 2005
Legal InternJohnson County, KS District Attorney's Office2002 - 2003
Legal InternU.S. Attorney's Office, Western District of Missouri2001 - 2001
Association namePosition nameDuration
National College of DUI DefenseMember2015 - Present
National Association of Distinguished CounselMember2015 - Present
National Trial Lawyers AssociationMember2012 - Present
Douglas County Bar AssociationMember2008 - Present
Kansas Association of Criminal Defense LawyersRecruitment Director2005 - Present
Missouri BarMember2004 - Present
Kansas Bar AssociationMember2003 - Present
Johnson County Bar AssociationN/AN/A
Association of Trial Lawyers of AmericaMember2006 - 2007
National Association of Criminal Defense LawyersMember2005 - 2006
Legal cases
Case nameOutcome
State v. K.C.Court grants motion; case dismissed
State v. C.T.Suppression upheld. District Court case dismissed
State v. A.N.Case dismissed
See all legal cases 
Publication nameTitleDate
Inside the Minds (Aspatore Books)Juvenile Criminal Defense Strategies2012
School nameMajorDegreeGraduated
University of Kansas School of LawLawJD - Juris Doctor2003
Kansas State UniversityBusiness AdministrationBA - Bachelor of Arts2000