Justin Gilleland

Phil is an AV-rated® trial lawyer. He has tried multiple jury and bench trials and has argued cases in the Colorado Supreme Court, the Colorado Court of Appeals, the Georgia Court of Appeals, the Illinois Appellate Court, the United States District Court for the District of Colorado, the United States District Court for the Northern District of Georgia, and the state trial courts of Colorado, Georgia and Illinois. Phil is licensed to practice before all state courts of Colorado and Georgi...

Prominent role in shaping Denver’s continued evolution. Steers complex real estate deals through all transaction phases. Distinguished community leader. Focusing on high-value real estate projects, Aaron Hyatt has played an influential role in Denver’s development—from the Saint Paul Collection and 260 North in Cherry Creek, to the Ralph L. Carr Colorado Judicial Center and History Center Colorado in downtown Denver. His work covers the lifecycle of complex and high-profile ...

Michael P. Dulin is a top attorney recognized by Best Lawyers in the practice area(s) of Advertising Law and Litigation - Intellectual Property. Michael P., who practices law in Denver, Colorado, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Michael P. is held by other top lawyers in the same geographic and legal practice area.

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

William Peffer is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. William, who practices law in Denver, Colorado, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William is held by other top lawyers in the same geographic and legal practice area.

James P. Lane is a top attorney recognized by Best Lawyers in the practice area(s) of Public Finance Law and Tax Law. James P., 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 James P. is held by other top lawyers in the same geographic and legal practice area.

Stephen Shapiro, senior counsel and co-founder, is based in Otteson Shapiro’s Denver office. He provides clients and the firm’s insurance recovery team with insights that help guide strategy, including litigation support, personal counsel representation and mediations. With more than 30 years of experience as an insurance coverage and bad faith lawyer, Steve is well respected among defense and coverage counsel, and his peers. His reputation is justified by his focus on working tow...

Mr. Fleishman’s practice emphasizes creative, aggressive representation of firm clients in the areas of divorce, pre and post nuptial agreements, commercial, construction, personal injury, professional liability, employment law, bad faith, and insurance litigation. His expertise in the creation of medical and legal risk management programs and procedures for clients, as well as drafting and analysis of insurance contracts, is well recognized. Mr. Fleishman was selected multiple times fo...

Cory Rutz represents property owners and developers in the acquisition and entitlement of commercial, residential and industrial projects. Cory’s practice includes assisting clients with local government approval of annexations, subdivisions, rezonings and development agreements. Her recent work includes advising clients on incorporating various types of short-term rental uses into their properties. With joint degrees in law and urban planning, Cory is also a certified member of the Ame...

Mark serves as head of the firm’s Family Law Group, and has been since joining the firm in 1972. In 1985, he limited his practice to focus exclusively on divorce matters. As one of the leading attorneys in the field, Mark handles cases involving pre-and post-marital agreements, sophisticated property settlements, negotiated settlements, permanent order trials, child-related issues and extensive mediation and arbitration. He also serves as a mediator, settlement master and arbitrator in ...