Tanner J. Walls

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...

Kevin McGreevy has extensive trial and litigation experience in federal and state courts. He was lead counsel in over 50 jury trials. Mr. McGreevy represents individuals and entities in a wide variety of matters, including white collar criminal investigations and defense, general criminal defense, regulatory matters before state and federal agencies, civil litigation and appeals. Mr. McGreevy is the lawyer other lawyers turn to for help. He has represented some of Denver’s largest law f...

More than 20 years of experience navigating prominent real estate development projects. Valued counsel to some of the nation’s leading homebuilders and developers. Greg Vallin provides counsel on high-profile, complicated real estate development projects. He helps some of the region and nation’s largest homebuilders and commercial developers find solutions for the complex issues that development projects present. From representing Sterling Ranch in the simultaneous closing of 800 ...

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

Curt Sullan was born in Fort Lauderdale, Florida, in 1962, and grew up near Chicago. He graduated from Glenbrook North High School in 1980 and from the University of Maryland in 1984. He received a bachelor’s degree in political science, with a double minor in English and Philosophy. Mr. Sullan graduated from the University of Denver College of Law in 1988 with a Juris Doctor. While at the University of Denver, Mr. Sullan served on two law reviews and was a member of the Moot Court. Mr....

Tim Tarr is an attorney with Cheney, Galluzzi & Howard Law Firm in Denver, Colorado . His practice focuses on Personal Injury Litigation - Plaintiffs, where he represents individuals who have been harmed by the negligence of others. Tim joined CGH in 2025 after more than a decade working in plaintiff-focused personal injury matters, first beginning in the field in 2013 and practicing as a personal injury attorney since 2017. Tim handles personal injury matters at both the pre-litigation a...

Joshua B. Kirkpatrick is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Joshua B., who practices law in Denver, Colorado, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joshua B. is held by other top lawyers in the same geographic and legal practice area.

Jamie is a dedicated attorney with a deep focus on family law, and she truly understands the complexities and emotional challenges that her clients face. With years of experience, she has been fortunate to help numerous families navigate their domestic relations cases, achieving positive outcomes that make a real difference in their lives. Jamie’s exceptional negotiation skills allow her clients to find resolutions that respect their needs and circumstances, guiding them toward peace of...

Jennie R. Wray is a Partner at The Harris Law Firm. Nationally recognized for in Divorce and Family Law, Attorney Wray has been named to the Colorado Super Lawyers® list of Rising Stars™ seven years in a row. Selection to the Rising Stars list is earned by just 2.5% of all practicing attorneys in each state. As passionate advocate who has dedicated her professional career to making the law clear and accessible to those who need it most, Ms. Wray has helped numerous individuals and f...

David D. Powell, Jr. is a partner in the firm’s Denver office, focusing his practice on employment and commercial litigation. Before co-founding the firm with his colleagues in 2023, David served as a Deputy Attorney General in the Colorado Attorney General’s Office, managing the eight separate legal units comprising the State Services Section. In this role, he oversaw those responsible for representing the state’s key elected officials and providing legal services in the ar...