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About me

In January 2010, I participated on the faculty of the American Association for Justice's National College of Advocacy's Advanced Depositions College.  In March I was a course advisor for its Essentials of Civil Litigation College, and in June I was on the faculty for the "Rules of the Road" College.  All colleges were for plaintiffs' trial lawyers from around the nation.


On April 22, 2010, my partner Tom Swett and I made a presentation to the Mentor-Mentee program of the Boulder County Bar Association.


Practice areas


  1. Litigation: 25%
  2. Personal Injury: 25%
  3. Criminal Defense: 25%
  4. Commercial Real Estate: 25%



Contingent (33-40%)

Attorney endorsements

9 total 

Are you an attorney? Endorse this lawyer

  • Stephen Andrew Closky

    I have know Sonny for a number of years and worked closely with him on the Board of Directors for the Boulder County Bar Association. He is one of the kindest, most thoughtful and intelligent lawyers I have ever known and I strongly endorse him.


    Stephen Closky Divorce and separation Attorney
    Relationship: Fellow lawyer in community

  • Michael S. Waddington

    I endorse Harold. 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

Hurth, Yeager, Sisk & Blakemore, LLP

4860 Riverbend Rd.
P.O. Box 17850
Boulder, CO, 80308-0850


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Kenneth Norman Kripke AwardColorado Trial Lawyers Association2013
Outstanding AlumnusUniversity of Colorado Law School1993
Award in BusinessBoulder County Community Action1990
Work experience
TitleCompany nameDuration
PartnerHurth, Sisk & Blakemore, LLP1997 - Present
PartnerHolland & Hart, LLP1989 - 1997
Association namePosition nameDuration
Colorado Trial Lawyers AssociationExecutive Committee1987 - Present
Boulder County Bar AssociationBoard Member2003 - 2009
Colorado Bar AssociationVice President2002 - 2003
Association of Trial Lawyers of AmericaBoard Member2002 - 2003
Association of Trial Lawyers of AmericaExecutive Committee2001 - 2003
Colorado Trial Lawyers AssociationPresident1999 - 2000
National Bar AssociationVice President1990 - 1991
Sam Cary Bar AssociationPresident1987 - 1987
Colorado Criminal Defense Bar Association (Boulder County chapter)Board of Directors1982 - 1983
School nameMajorDegreeGraduated
University of Colorado School of LawLawJD - Juris Doctor1971
University of ColoradoN/ABA - Bachelor of Arts1967