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About me

D. Mathew Blackburn is an attorney at Robinson & Henry P.C. and practices Tax law. Mathew is licensed to practice before state and local taxation authorities, The Internal Revenue Service, The United States Tax Court, The United States District Court, The United States Bankruptcy Court and in Colorado State Courts. 


Mathew has a deep understanding of personal and business taxation and takes great pride in helping clients resolve their tax issues.   


Mathew studied Business Administration at Mississippi State University focusing on management and accounting, he then obtained his Juris Doctorate Degree from Valparaiso University, and continued on to obtain a Masters in Taxation Degree (LL.M.) at the University of Denver where he represented taxpayers at the University of Denver’s Low Income Tax Clinic and competed in the American Bar Association’s Student Tax Challenge Writing Competition, all while running a fledgling law firm.


Mathew has volunteered with many organizations such as the Volunteer Tax Assistance Program, YMCA, and Metro Area Lawyers and believes in giving back to the community.


Photos and videos

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Practice areas


  1. Tax: 90%
    6 years, 100 cases
  2. Business: 10%
    6 years



Hourly ($250/hour), Free consultation (15 minutes)

Payment types:

Cash, Check, Credit card

Attorney endorsements

16 total 

Are you an attorney? Endorse this lawyer

  • Bradley Louis Schencker

    Mr. Blackburn and I belong to a national group of attorneys who regularly exchange ideas on how to best represent our clients. Donald's advice in the areas of estate planning, family law, and bankruptcy indicate his dedication and professionalism in his representation of his clients.


    Bradley Schencker Family Attorney
    Relationship: Fellow lawyer in community

  • Alexandra Gonzalez-Waddington

    I endorse this lawyer.


    Alexandra Gonzalez-Waddington Military law Attorney
    Relationship: Fellow lawyer in community

Contact info

Robinson and Henry P.C.

900 Castleton Rd.
Suite 200
Castle Rock, CO, 80109


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Tax & Business CertificationLead Counsel2015
Work experience
TitleCompany nameDuration
AttorneyRobinson and Henry P.C.2016 - Present
PartnerBandy & Blackburn2014 - 2016
OwnerLaw Office of D. Mathew Blackburn2012 - 2014
Of CounselFlinders | Bandy Attorneys at Law2012 - 2014
Regulatory Compliance and Special ProjectsNational Technology Transfer2011 - 2012
Association namePosition nameDuration
Colorado Bar AssociationN/A2012 - Present
American Bar AssociationN/A2010 - Present
Legal cases
Case nameOutcome
McConneghy v. CommissionerSettled
See all legal cases 
Publication nameTitleDate
Indiana Farm Bureau Policy ManualIFB Policy on Coalbed Methane Property Rights2011
School nameMajorDegreeGraduated
University of Denver Sturm College of LawTaxationLL.M - Master of Laws2014
Valparaiso University School of LawLawJD - Juris Doctor2011
Mississippi State UniversityManagement, Accounting, & Business LawOther - Bachelors2007
Speaking engagements
Conference nameTitleDate
Second Saturday WorkshopIntroduction to Divorce2016