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Sean Gregory Whittmore

Sean Gregory Whittmore

About me

    Sean G. Whittmore graduated with a B.A. in History from Texas A&M University in 2005. Following his graduation from Texas A&M, he followed in his family footsteps as a fourth-generation graduate of Washburn University Schoold Of Law in Topeka, KS.

     While in law school, Sean began his career in criminal law clerking for the District Court Judges of the Eight Judicial District of Kansas.  He then began practicing criminal law as an intern with the Washburn Law Clinic, where he represented indigent clients in the courts of Shawnee County, KS.  Sean then interned with the Kansas Appellate Defender Office through the Washburn Law Clinic drafting appeals for indigent defendants.Following his early defense work, Sean began working as an intern prosecutor with the Shawnee County District Attorney's Office where he prosecuted misdemeanor offenses. 

     After passing the Texas bar, Sean worked as an Assistant District Attorney in the Montgomery County District Attorney's office for two and a half years.  There he prosecuted felony and misdemeanor cases and gained valuable insight into how prosecutors evalaute and prepare their cases for trial. 

     Following leaving the DA's office, Sean worked for Stephen Jackson at the Law Offices of Stephen D. Jackson & Associates before forming his own practice, the Whittmore Law Firm.


Languages spoken: German, English

Practice areas


  1. Criminal Defense: 100%



Fixed (always)

Payment types:

Cash, Check, Credit card

Attorney endorsements

4 total 

Are you an attorney? Endorse this lawyer

  • Colin Hobbs

    I worked with Sean at the Montgomery County DA's office and later against Sean when he went into private practice. He's very knowledgeable about the law and how to best fight for his clients.


    Colin Hobbs Family Attorney
    Relationship: Opposing Counsel on matter

  • F. Brice Hersom

    I endorse this lawyer. Mr. Whittmore is a skilled attorney and advocate for his clients.


    F. Hersom Divorce & Separation Attorney
    Relationship: Fellow lawyer in community

Contact info

The Whittmore Law Firm, PLLC

300 West Davis St.
Suite. 450
Conroe, TX, 77301


TXEligible To Practice In Texas 200910/19/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Top Paper - Advanced EvidenceCALI2009
Work experience
TitleCompany nameDuration
Founding PartnerThe Whittmore Law Firm, PLLC2013 - Present
Contract AttorneyLaw Office of Stephen D. Jackson & Associates2012 - 2013
Assistant District AttorneyMontgomery County District Attorney's Office2010 - 2012
Intern ProsecutorShawnee County District Attorney's Office2008 - 2009
Legal InternWashburn University School Of Law - Law Clinic2008 - 2009
Association namePosition nameDuration
Texas Criminal Defense Lawyers AssociationMember2013 - Present
Montgomery County Criminal Lawyers AssociationMember2013 - Present
Montgomery County Bar AssociationMember2010 - Present
Texas District and County Attorneys AssociationMember2010 - 2012
Phi Alpha DeltaMember2006 - Present
Legal cases
Case nameOutcome
State of Texas v. H.P.Dismissed
See all legal cases 
School nameMajorDegreeGraduated
Washburn UniversityLawJD - Juris Doctor2009