Douglas B. "Doug" Tumminello

Dannon G. Allbee is a top attorney recognized by Best Lawyers in the practice area(s) of Artificial Intelligence Law. Dannon G., 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 Dannon G. is held by other top lawyers in the same geographic and legal practice area.

About Melinda Melinda, or Mindy as she is better known, is a member of Ciancio Ciancio Brown, P.C. family law team. Mindy comes to CCB from a boutique firm that specialized in family law and probate. Before that, Mindy worked as a staff attorney at the Colorado Court of Appeals for almost 20 years. She specialized in cases involving all aspects of family law, dependency and neglect, and workers’ compensation. The issues she addressed ran the gamut from adoption and paternity to complex ...

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...

Extensive experience with a variety of complex, high-profile transactions. Provides practical, business-minded advice. Recognized for his leadership in the M&A space. Avi Loewenstein represents private equity funds, entrepreneurs, family offices and private companies in a variety of complex transactions including mergers and acquisitions, leveraged buyouts, growth equity and minority investments, corporate reorganizations and general corporate matters. Additionally, he has crafted complex...

Steven B. Epstein is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Steven B., 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 Steven B. is held by other top lawyers in the same geographic and legal practice area.

Marc J. Musyl is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Marc J., who practices law in Denver, Colorado, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Marc J. is held by other top lawyers in the same geographic and legal practice area.

Kate Schroepfer is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Commercial Finance Law. Kate, 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 Kate is held by other top lawyers in the same geographic and legal practice area.

More than a decade of experience in patent law. Represents some of the most recognizable names in Silicon Valley and the tech industry at large. Manages international patent portfolios for multinational companies. Benno Guggenheimer brings his technical background to bear on his patent work for Fortune 500 companies. His practice includes patent prosecution and patent analysis, with a focus on electronic devices, software products, medical devices and automated systems. Benno works closely wi...

Gretchen E. Lipman is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Family Law. Gretchen E., who practices law in Denver, Colorado, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gretchen E. is held by other top lawyers in the same geographic and legal practice area.

Mark draws on 40 years in the practice of law to support and advocate for the business interests and legal rights of clients – large national and international corporations, regional interests, middle market, small, and entrepreneurial ventures – in wide ranging litigation, general business, and transactional matters. He serves as trial counsel and advisor on large dollar, corporate governance, officer and director liability, business tort, commercial, financial institutions, and ...