J. Keith Killian

Christian Hendrickson is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Christian, who practices law in Denver, Colorado, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christian is held by other top lawyers in the same geographic and legal practice area.

Marc J. Kaplan is a practicing trial lawyer, special master and arbitrator. Having been certified by the National Board of Trial Advocacy, Mr. Kaplan is a formidable advocate in court. Mr. Kaplan provides to the firm expertise in civil litigation and appeals, including complex divorces. Mr. Kaplan practices in all civil areas of the law, but primarily in the areas of family law and legal malpractice. Kaplan is the Immediate Past President of the Colorado Trial Lawyers Association, represented...

Mr. Katz joined Burg Simpson in September 2005 after six years with the New York law firm of Seeger Weiss LLP, in which he was a partner. Mr. Katz focuses his practice primarily in the areas of complex, pharmaceutical mass tort, and class action litigation including consumer protection, securities fraud, products liability, and commercial litigation. In addition to his varied professional experience, Mr. Katz is a frequent speaker on electronic discovery, class actions, and pharmaceutical lit...

Understands complexities of water litigation, acquisitions and transactions. In 40-plus year career has led 750 water litigations and over 20 Supreme Court appeals. Former senior water counsel and first assistant attorney general for the Water Unit of the Colorado Attorney General’s Office. Steve Sims is a leading western water law attorney with a focus on water court litigation, water acquisition strategy and water transactions in the west. He brings four decades of experience represen...

Darin J. Gibby is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Darin J., who practices law in Denver, Colorado, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Darin J. is held by other top lawyers in the same geographic and legal practice area.

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...

Matthew Gizzi is a top attorney recognized by Best Lawyers in the practice area(s) of Workers' Compensation Law - Claimants. Matthew, who practices law in Aurora, Colorado, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew is held by other top lawyers in the same geographic and legal practice area.

Litigation Practice Part of Davis & Ceriani’s trial team, Ms. Pappas’s experience as a litigator includes participating in all phases of multi-million dollar litigation, in jury trials as well as FINRA arbitrations. Her practice areas include securities litigation, employment law, complex commercial litigation, personal injury and general civil litigation. Her securities experience over the past twenty years includes cases across the country representing institutional investor...

Robin Lutz Beattie, Esq. is a partner at the law firm of Polidori, Franklin, Monahan & Beattie, L.L.C., where she practices all aspects of family law. She has written and lectured on a variety of family law topics, and is a Past President of the First Judicial District Bar Association. She is the author of the Spousal Maintenance Chapter of the Practitioner’s Guide to Colorado Domestic Relations Law and the Common Law Chapter of the Bench Bar Book. Ms. Beattie is currently the Chair...

Ron is head of the environmental practice group and has over 30 years of experience in environmental matters including prior work as a physical scientist for the Denver Regional Office of the U.S. Environmental Protection Agency. He represents all types of clients, including various municipalities and other public sector clients, in environmental matters related to Environmental Compliance Audits, Voluntary Cleanups, Underground Storage Tanks, Asbestos, Water Quality, Air Quality, Hazardous W...