Janine A. Guillen

Martine Tariot Wells is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Labor and Employment. Martine Tariot, 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 Martine Tariot 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....

Katy formed Azizpour Donnelly in 2012. Prior to that, she practiced in the litigation departments of leading national and local firms, clerked for the former Chief Judge of the Tenth Circuit Court of Appeals and for the Chief Judge of the United States District Court for the District of Colorado, and worked at the International Criminal Tribunal for the former Yugoslavia. She is an experienced trial counsel. And her appellate work has earned her wide local recognition, including repeated sele...

Mary Sue Greenleaf is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law and Litigation - Construction. Mary Sue, 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 Mary Sue is held by other top lawyers in the same geographic and legal practice area.

Evan works closely with clients in the commercial real estate and infrastructure, especially renewables and pipeline development, industries. Much of his work involves complex projects that span multiple sites and multiple states. Pipeline, Renewables and other Infrastructure Projects: Evan represents companies in connection with oil and gas pipeline developments. Additionally, he represents renewable energy clients, including developers of wind and solar farms. He also represents landowners ...

Tracy Ashmore is a shareholder at Robinson Waters & O’Dorisio, P.C. . She represents clients in competition law and business-law trials, with an emphasis on antitrust, commercial, real estate, and insurance coverage disputes. Ms. Ashmore also has many years of experience protecting the rights of consumers, lenders and developers. As an experienced trial lawyer, Ms. Ashmore is highly attuned to the potential costs and risks of litigation. While she enthusiastically takes cases to tri...

Larry Free has practiced exclusively in the area of Workers’ Compensation since 1995. His understanding and appreciation of workers began through his own employment history. In his early years, he worked at a variety of jobs in the food service industry, cabinet making, carpentry, appliance repair, and delivery. He originally joined the firm as a “runner” and worked as a clerk during law school. He became an associate following graduation and was admitted to partnership in 1...

Ryan Lessmann is the office managing principal of the Denver, Colorado, and Salt Lake City, Utah offices and is a client solutions leader of Jackson Lewis P.C. He practices primarily in the area of employment litigation, including representing employers against claims alleging discrimination, retaliation, and wrongful termination, matters involving trade secret protection, restrictive covenants and unfair competition, and various contract issues. Ryan also counsels and defends employers in wa...

In-depth health care industry knowledge. Helps clients resolve disputes at all phases, from pre-dispute resolution to litigation. Trusted authority on health care compliance. Erin Eiselein is co-chair of the firm's Health Care Group. She counsels clients on a wide variety of issues facing the health care industry. Representing hospital systems, medical groups, practitioners and community health organizations, Erin has a unique understanding of both the law and the constantly evolving regulato...