Daniel Calisher

Danielle Urban is a partner in the firm's Denver office. She has a national practice representing a wide range of employers. Her practice involves representation of employers in wrongful termination, employment discrimination and harassment, Title VII, Family and Medical Leave Act (FMLA), Americans with Disabilities Act (ADA), and the Age Discrimination in Employment Act (ADEA), False Claims Act, international employment issues, covenants not to compete, employee defection and trade secrets c...

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.

Practiced in the area of employment law for approximately 42 years, litigating, arbitrating and mediating employment related issues. Lectured locally and nationally on innumerable occasions with regard to employment law issues. Served as lead counsel in the largest age discrimination case ever brought, and successfully resolved, in the State of Colorado. Secured one of the largest ERISA judgments ever entered in the State of Colorado and also secured the first race discrimination judgment for...

Tasha Power assists clients with a variety of real estate matters. She handles acquisitions and dispositions of raw land and office, industrial, retail, and multifamily properties. She assists clients with condominium developments and is well versed in the Colorado Common Interest Ownership Act (CCIOA). Her practice also involves negotiating and drafting construction contracts for clients on a variety of projects. Tasha also focuses her practice on commercial leasing, representing both landlo...

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

Trusted advisor on high-volume commercial real estate transactions. Deep understanding of all facets of the real estate timeline. Regularly handles complex transactions involving ground-up development with public finance elements. Marc Diamant thrives in the ever-changing world of today’s commercial real estate transactions. He has significant expertise in acquisitions, financing, development work, leasing and loan workouts. Handling a high-volume of real estate transactions means Marc ...

My Colorado law practice focuses on helping clients whose insurance benefits have been wrongfully delayed or denied, assisting survivors of childhood sexual abuse, and representing clients in all types of plaintiff personal injury cases . I am a lawyer that fights insurance companies. I guide my clients through complex insurance disputes when insurance companies act in bad faith and fail to honor their commitments under automobile, UM/UIM, disability, homeowners, commercial general liability,...

Craig S. Nuss, the co-practice group leader of the Construction Defects department at Burg Simpson. His department has achieved Tier 1 status by US News and World Report (the highest-ranking available). Mr. Nuss is a Colorado native born in Brush in 1960. He obtained his undergraduate degree in business administration from the University of Colorado at Boulder in 1982 and graduated from the University of Denver College of Law in 1988. Mr. Nuss begin his legal career the following year with a ...

Ivan A. Sarkissian, co-founder of McConaughy & Sarkissian, P.C., was admitted to practice law in Colorado in 1997 and is admitted to practice in all Colorado state courts, the United States District Court for the District of Colorado, and the United States Tenth Circuit Court of Appeals. Mr. Sarkissian received his Bachelor of Arts degree from Michigan State University in 1993 and attended the Tulane University School of Law, obtaining his Juris Doctorate degree, cum laude, in 1997. While...

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...