Ellen K. O'Brien

Betsy P. Bengtson is a top attorney recognized by Best Lawyers in the practice area(s) of Trademark Law. Betsy P., 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 Betsy P. is held by other top lawyers in the same geographic and legal practice area.

Niceta E. Bradburn is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Juvenile Practice. Niceta E., 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 Niceta E. is held by other top lawyers in the same geographic and legal practice area.

For over 20 years, Marci LaBranche has handled high-stakes criminal investigations and trials, as well as complex civil litigation, in both state and federal court. She also assists with all manner of collateral consequences that can arise from being accused of a crime. Marci is known for her perseverance and ability to quickly learn and assess even the most complex of cases. She is the rare trial attorney who practices in the areas of both civil and criminal litigation. In her criminal pract...

Karen Chapman is a Member in Sherman & Howard’s Corporate and Business Department. She is a highly respected specialist in mergers and acquisitions and corporate financings, leading teams that close sophisticated transactions valued in the hundreds of millions and billions of dollars. Karen plays a preeminent role representing airlines in jet fuel storage and distribution system leasing, contract and financing matters at major airports throughout the United States. Karen’s pra...

Elected president and managing director in 2021, Erin A. Webber guides the strategic direction and global growth strategy for the world’s largest labor and employment law firm. Erin also oversees the management and operations of Littler’s more than 1,600 attorneys and offices worldwide. She represents management in various employment matters, with an emphasis on: Employment discrimination on the basis of sex, age, race and disability Retaliation Workplace harassment Leaves of abse...

Thirty-five years navigating complex land use and water issues. Facilitated hundreds of millions in water rights deals. Respected authority on water, land use and environmental law matters. Few can rival Wayne’s experience handling high-profile land use, water, environmental and condemnation matters. Public entities and private companies throughout the Rocky Mountain region have counted on his experience to handle challenging land use and water issues, including water rights litigation ...

Alan D. Sweetbaum is the founding shareholder of the law firm of Sweetbaum Sands Anderson PC. He founded the law firm in 1994 and has grown the practice from two lawyers to its present size. Mr. Sweetbaum has been practicing law continuously since 1983. He practices in the area of commercial and civil litigation and specializes in handling all types of litigation affecting real estate. Mr. Sweetbaum also handles bankruptcy, foreclosure, receivership, quiet title actions, construction defect a...

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...

Timothy Garvey is a top attorney recognized by Best Lawyers in the practice area(s) of Insurance Law and Personal Injury Litigation - Plaintiffs. Timothy, 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 Timothy is held by other top lawyers in the same geographic and legal practice area.

As part of the firm’s Litigation and Health Law Practice Groups, Ms. Harden represents individuals and businesses, large and small, in resolving disputes and in all aspects of litigation and trial. Although a significant portion of Ms. Harden’s practice focuses on representation of physicians, nurses, and other health care professionals, as well as hospitals and other health care entities, she represents many businesses from various sectors. Acting in an inside counsel role, she o...