Whichever direction a dispute may take, Doug provides careful, efficient, and value-conscience service to help clients meet their objectives and protect their businesses.
Doug Tumminello is a trial lawyer who represents companies in civil lawsuits involving significant financial or reputational exposure. Doug's practice focuses on complex business, business tort, and intellectual property litigation, including matters involving claims against consumer product companies and outdoor recreation companies. He represents a variety of well-known business and nonprofit entities as litigation and trial counsel and has tried cases in the state and federal courts of Colorado and Wyoming, as well as in private arbitrations, and has argued before Colorado and federal courts of appeal. Doug’s litigation experience includes contracts, real estate, negligence and intentional acts, products liability, supply chain, intellectual property, waiver/exculpatory contracts, and insurance-related claims. He regularly advises businesses concerning formation, corporate governance and compliance, risk management, and strategic planning issues.
Doug is also the managing partner of the firm’s Colorado Offices (Denver and Colorado Springs) and serves as chair of the firm's Sports and Outdoor Recreation Industry Group. He is a well-regarded national speaker and has given a number of keynote addresses to business, civic and nonprofit organizations, schools, and churches.
Doug is attentive, experienced, highly proficient, and willing to take any matter to trial when necessary to achieve clients’ strategic goals, while at the same time very skilled and successful at delivering outcomes that maximize value through negotiated resolutions. Clients find his charming and witty sense of humor refreshing and enjoy working with him through the most challenging matters. His commitment to providing an outstanding customer experience is admired by clients and colleagues alike, and his long-term clients appreciate his responsiveness whether during office hours, in the evening, or over the weekend.
During his time as a cadet at West Point, Doug took a Constitutional law class and quickly became interested in pursuing a legal career. When away from his work, Doug is an extreme adventurer who has summited Mt. Everest and set world records for rowing a rowboat 3,600 miles across the Indian Ocean from Australia to Mauritius. He has engaged in numerous expeditions across the world’s polar regions, mountains, and oceans.
More About Douglas B. Tumminello
- J.D., University of Denver, Sturm College of Law, Order of St. Ives, 1996
- B.S., United States Military Academy, West Point, 1987
- Colorado Court of Appeals
- Colorado State Judicial District Courts
- Colorado Supreme Court
- U.S. Court of Appeals, Tenth Circuit
- U.S. District Court, District of Colorado
- U.S. District Court, District of Wyoming
- U.S. Supreme Court
- Wyoming State Courts
- Wyoming Supreme Court
- The Explorers Club, Member
- 14th Judicial District, Colorado, Judicial Performance Commission, Chair
- Member, Rocky Mountain District Export Council
- North Routt Community Charter School, Board member
- Steamboat Christian Center, Board member
- Denver, Northwestern Colorado, Colorado and American Bar Associations, Member
- City of Steamboat Springs, Colorado, Parks and Recreation Commission (former)
- Sherpa Memorial Foundation, Board of Directors and President (former)
- Himalayan Rescue Association USA, Board of Directors (former)
- Yampa Valley Gives, Board of Directors (former)
- Military & Veterans Affairs Section Colorado Bar Association, Vice-Chair (former)
- Trial counsel in multimillion-dollar trial representing an electrical generation and transmission company in one of the nation’s first fully remote trials as a result of COVID restrictions on in-person trials.
- Trial counsel for defendant in federal court case seeking multimillion-dollar award for alleged sexual assault. Prevailed following jury trial.
- Trial counsel for a national company in private arbitration over breach of contract and business tort claims. At arbitration, prevailed on all of the claims brought against his client, and on his client’s counterclaims against the plaintiff, which then resulted in a settlement favorable to his client.
- Arbitration counsel for national youth sports camp company in litigation over sale of the company, resulting in favorable settlement prior to arbitration hearing.
- Counsel for real estate investment trust over breach of contract related to sale of medical office complex. Case settled favorably the week prior to jury trial.
- Counsel for a national real estate investment trust, defending claims of asbestos exposure at an apartment complex. Successfully defended the claims brought by over 150 plaintiffs, which the plaintiffs estimated to be in excess of $24 million, and obtained a complete summary judgment dismissal of all claims.
- Trial counsel for insurance holding company and its subsidiaries in bad faith and breach of contract lawsuits in Colorado and Wyoming federal and state courts.
- Counsel for client in connection with cold weather injury claims sustained during wilderness therapy program.
- Counsel for national ski resort company in business tort claims resulting from real estate development.
Honors & Recognitions
- The Best Lawyers in America, Commercial Litigation, Product Liability Litigation - Defendants, 2020-2021
- Colorado Super Lawyers, Business/Corporate, Business Litigation, 2019-2021
- Press Release, 03/9/2021
- Press Release, 08/20/2020
- Honors & Recognitions, 03/13/2020
- Lewis Roca Rothgerber Christie Attorneys Recognized as 2019 Colorado Super Lawyers® and Colorado Rising Stars®03/18/2019
- Press Release, 06/2/2017
- Press Release, 03/22/2016
- Presenter, "Experience Amplified – a Client Service Model," USLaw Network, February 2020
- Presenter, "Combating Product Counterfeiters," Outdoor Industry Association (OIA) Webinar, January 2020
- Presenter, "Understanding Product Liability Risks," Outdoor Industry Association (OIA) Webinar, September 2019
- Co-presenter, "Solving the International Expansion Puzzle – Sustain Your Company’s Global Footprint and Expand Your Business Into Key Markets," Outdoor University, Outdoor Retailer Summer Market, June 2019
- Co-presenter, "Service Metamorphosis – Driving Performance Improvements," Legal Marketing Association, March 2019
- Co-presenter, "Intellectual Property Quiz Show," Outdoor University, Outdoor Retailer Summer Market, July 2017
- Presenter, Keynote presentation, National State Auditors Association, June 15, 2016
- Speaker, "Emerging Corporate Compliance Trends and Predictions," Association of Corporate Counsel, April 20, 2016
- Presenter, "Intellectual Property, Manufacturing and Sales Warranties, and Liability Waivers in the Outdoor Manufacturing and Services Industry," Yampa Valley Entrepreneurship Center, March 25, 2016
- Presenter, Keynote presentation, Medtronic, Inc. Sales Team, 2015
- Presenter, Keynote presentation, IMA Financial Group, 2015
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- Press Release |  03/9/2021
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- Honors & Recognitions |  03/13/2020