Tiffaney A. Norton

Peter McClenahan is at home in the courtroom. A skilled and dynamic trial lawyer, Peter’s practice focuses on personal injury, complex business and civil litigation and professional malpractice. In 2013, Peter was recognized for obtaining two of the top ten largest personal injury jury verdicts in the State of Colorado that year. Peter’s litigation background is extensive, and he has learned his craft from some of the best. Prior to joining Ogborn Mihm, Peter led a trial team of a...

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...

My practice focuses on business and commercial law, construction law, and bankruptcy and reorganization. Mr. Mulligan represents debtors, creditors, construction contractors, businesses, business owners and sole proprietors. He is well-versed in helping clients review and negotiate contracts, buy or sell companies and assets including through Bankruptcy Code Section 363 sales, obtain financing, form and govern business entities, plan for business succession, enforce creditors’ rights, a...

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

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...

Mary C. Baker is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Mary C., who practices law in Lone Tree, Colorado, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mary C. is held by other top lawyers in the same geographic and legal practice area.

Steve Cohen has overseen commercial real estate transactions for his clients, including acquisitions, dispositions, joint ventures, and debt and equity financings and restructurings, for over 35 years. He regularly represents developers, investors and sponsors in all industry classes, including office, multifamily, retail, industrial, mixed-use, hotels and raw land. As part of his transactional practice, Steve assists clients in structuring partnerships and limited liability companies, includ...

Christopher "Chris" Johnson is a top attorney recognized by Best Lawyers in the practice area of Corporate Law since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Chris is held by other top lawyers in the same geographic and legal practice area. Chris focuses his practice on mergers and acquisitions, corporate finance with an emphasis on private equity and venture capital matters, commercial transactions, and outside general counsel m...

Heath J. Briggs is a top attorney recognized by Best Lawyers in the practice area(s) of Patent Law. Heath J., 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 Heath J. is held by other top lawyers in the same geographic and legal practice area.

Robert C. Kaufman focuses his practice primarily on domestic relations matters involving large estates and complex valuation issues.