Arnold R. Kaplan

John Voorhees is a top attorney recognized by Best Lawyers in the practice area(s) of Administrative / Regulatory Law, Criminal Defense: White-Collar, Environmental Law and Litigation - Health Care. John, who practices law in Denver, Colorado, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John is held by other top lawyers in the same geographic and legal practice area.

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...

Represents both lenders and borrowers on complex, high-dollar real estate loans. Deep expertise in loan origination, acquisition and disposition and hospitality. Exceeds $1 billion in yearly loan origination. With a focus on real estate finance, David Curfman advises both lenders and borrowers on a variety of loan types, including securitized, bridge and construction financing, among others. He has a pragmatic approach and finds innovative and equitable solutions to clients’ real-world ...

Bill Silberstein is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Bill, 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 Bill is held by other top lawyers in the same geographic and legal practice area.

Garth Jensen has represented issuers in initial public offerings and other equity and debt offerings aggregating over $13.5 billion of proceeds. He has represented nearly 20 public companies listed on the New York Stock Exchange, NASDAQ and foreign exchanges, representing them in various mergers, acquisitions and other transactions and offerings. He is a trusted counsel to senior management and boards of directors of public and private companies, advising on corporate governance, leadership s...

Duncan focuses his practice on difficult and complex civil litigation and family law matters. He has significant experience in a variety of fields including construction defect, insurance, real estate and commercial litigation. He also assists with complicated domestic relations matters, and is especially useful in complicated property situations, or when there are concurrent civil lawsuits, receiverships, business torts or partnership dissolutions.Duncan’s work has led him to represent...

Peter W. Burg J.D. is one of America’s leading trial lawyers and one of the country’s foremost legal experts handling claims for persons with traumatic brain and/or spinal cord injuries. Mr. Burg is a senior shareholder at Burg Simpson Eldredge Hersh & Jardine, a national trial firm known for fighting for victims of negligence, malfeasance, malpractice, and abuse that has secured over $1 billion in verdicts, settlements, and judgments on behalf of its clients. Over the course ...

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...

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....

Doug has been an Assistant United States Attorney and Assistant District Attorney. Now that he is in private practice, Doug is one of Colorado’s most experienced and acclaimed criminal defense lawyers. AV rated by Martindale-Hubbell, with a perfect 10.0 / “Superb” rating by AVVO, Doug has been chosen as a “Rising Star” for several years—a distinction limited to 2.5% of Colorado’s practicing attorneys under the age of 40. In 2018 to 2020, he was recogn...