Zachary D. "Zach" Warren

Mari Perczak is the co-practice group leader of the Construction Defects department at Burg Simpson. She and her department have achieved Tier 1 status by US News and World Report, which is the highest-ranking available. Ms. Perczak has more than thirty years of experience as a Colorado trial lawyer and has successfully handled many large construction defect cases for Colorado homeowners and homeowner associations. In 2020, Ms. Perczak was lead trial counsel in a lengthy arbitration where she...

Ms. Caton practices in the areas of trusts and estates, including estate planning, estate and trust litigation, probate, elder law, disability planning, public benefits planning, and protective proceedings. She works with individuals and families in Englewood, Colorado and throughout the surrounding communities to address legal needs related to long-term planning, administration, and dispute resolution. Ms. Caton began her legal career as an assistant district attorney, where she prosecuted n...

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...

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...

Robert has assisted individuals and businesses of varying sizes with a wide variety of legal needs. He has focused his practice in the area of franchise law, including compliance with state and international registration and disclosure requirements. He also handles general corporate work for a number of businesses in many industries, including general corporate formation and transaction issues, intellectual property matters, secured transactions, real estate deals, commercial real estate, sec...

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...

Julie Gifford represents clients with respect to a variety of real estate matters, with a particular focus on real estate finance. Julie’s real estate finance experience includes representing lenders and borrowers on commercial real estate construction and permanent loan transactions, including the financing of multi-family developments, for-sale condominium projects, industrial warehouse centers, office buildings, medical office buildings, senior living facilities and major shopping ce...

Companies large and small frequently engage Roger to provide counsel on a broad spectrum of employment and immigration issues. With extensive experience and a national reputation for being at the forefront of change in immigration law, Roger is able to find positive solutions to his clients' varied needs. Roger counsels universities and companies in the healthcare, technology, and energy sectors on securing temporary and permanent visas for foreign national employees, including H-1B visas and...

Caleb Meyer is chief executive officer and managing partner of Messner Reeves LLP. He joined the firm over eight years ago and has played an integral part in the firm’s growth during that time. In his multi-state practice, Mr. Meyer focuses on trial advocacy and the representation of individuals, corporations, and other business entities in courts of law, arbitration, mediation, and other regulatory proceedings. He has litigated and tried numerous cases across the country, including com...