Gary B. Blum

Carolyn Witkus is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Family Law Mediation. Carolyn, who practices law in Denver, Colorado, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carolyn is held by other top lawyers in the same geographic and legal practice area.

Jessica L. Marinelli is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Jessica L., who practices law in Denver, Colorado, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jessica L. is held by other top lawyers in the same geographic and legal practice area.

Christopher G. Peterson is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Christopher G., who practices law in Denver, Colorado, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher G. is held by other top lawyers in the same geographic and legal practice area.

More than a decade of litigation and transactional experience in natural resources law. Handles multifaceted water rights cases throughout the state of Colorado. Dulcinea practices natural resources law, with a particular focus on water and environmental litigation and transactions. She represents municipal, corporate, nonprofit and individual clients in administrative proceedings, litigation, and appeals in both state and federal court and in water contract negotiations. She has provided leg...

Jim Rigberg is a seasoned business lawyer who provides end-to-end client representation in a variety of contexts. With particular expertise in the real estate and healthcare industries, Jim puts his years of courtroom experience to work advising clients on front-end strategies to secure optimal leverage and avoid exposure to costly litigation down the road. Jim also focuses his practice on Intellectual Property, where he helps clients protect their investments in their brands and creative out...

Seeing is believing. Most serious personal injury claims never make it to the courthouse. Instead, they are settled before trial either through direct negotiations with the other side or at a mediation or settlement conference. I have spent the last few decades of my career doing everything I can to facilitate out-of-court settlements. While most lawyers will present their clients’ stories to opposing counsel through a written demand letter, we know that video footage is simply more pow...

Brian L. Duffy is a president of the firm and previously served as Chair of the firm’s 600-member Global Litigation Department from 2009-2013. He focuses his practice on trial and appellate work in the class action, employment, energy, commercial contract and product liability areas, serving as national, regional and local counsel in high-profile cases. Brian represents public and privately-held entities and their principals in complex business-related disputes arising from both interna...

Tyler J. Sewell is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Tyler J., who practices law in Denver, Colorado, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Tyler J. is held by other top lawyers in the same geographic and legal practice area.

Stephen J. Dietrich is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Stephen J., who practices law in Denver, Colorado, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephen J. is held by other top lawyers in the same geographic and legal practice area.

Joe is a no-nonsense, hardworking lawyer with an undergraduate degree in Civil Engineering and eight years of practical work experience in the road and bridge construction industry, including work as a project superintendent for a heavy highway general contractor. Since he began practicing law in 1995, Joe’s practice has been devoted exclusively to construction law, with a specific emphasis in construction litigation. He represents owners, design professionals, contractors/subcontractor...