Hurth, Sisk & Blakemore, LLP is a Colorado law firm defined by our commitment to integrity and our passion for the law. All four attorneys have received degrees from The University of Colorado and are deeply involved in the Boulder County and Colorado communities.

Our History

In 1970, Charles A. Hurth, Jr., and John M. Yeager formed a partnership of Hurth & Yeager. Hurth and Yeager became friends while attending law school at the University of Colorado and opened their office in Boulder.

In 1973, Charles Sisk joined Hurth and Yeager and the firm’s name changed to Hurth, Yeager & Sisk. The firm has continued to provide legal services in Boulder since its inception and has been generally recognized for its stability, continuity, and contributions to the legal community and to Boulder County.

Charlie Hurth and John Yeager have retired from the practice of law. Hurth and Yeager will always be honored as outstanding lawyers, and from our own internal perspective, we are the beneficiaries of their mentorship and friendship.

As we enter our fourth decade of a law firm, we have four partners, Charles L. Sisk, W. Harold “Sonny” Flowers, Stephanie L. Brennan, and Trevor (TJ) Willard, who work together with our outstanding legal staff, to provide quality legal services of a wide breadth and professionalism, which is the embodiment of our firm.


The attorneys and team members at HS&B have been, and are currently, involved in an array of civic and activities including:

  • Charles “Chuck” Sisk is the former mayor of Louisville, Colorado, which was voted the best small town in the United States by Money Magazine in 2009. More >
  • Sonny Flowers was president of the University of Colorado at Boulder Alumni Association. More >
  • Stephanie Brennan serves on the board of directors for a number of non-profit organizations. More >

The HS&B Team looks forward to continuing to effectively serve our clients and community.