David S. O'Leary
About David S. O'Leary
David S. O'Leary is a lawyer based in Denver, CO and has been recognized in The Best Lawyers in America® since 2024. David S. O'Leary is recognized in the following practice areas:
-
Denver, Colorado
- Municipal Law
- Real Estate Law
Current Firm: Spencer Fane LLP
Education: University of Denver, graduated 1995
Location: Denver, CO
Nearby Lawyers
Kim Martin represents real estate developers, investors and owners of residential, commercial, industrial, TOD and mixed-use projects. She has a specific focus on large-scale greenfield and brownfield development projects, including all aspects of land use entitlements—securing approvals for annexations, development agreements, zonings and rezonings, subdivisions, site plans, transferable development rights, public revenue sharing agreements and vested property rights. Kim assists clien...
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.
Fritz Ganz is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law. Fritz, who practices law in Denver, Colorado, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Fritz is held by other top lawyers in the same geographic and legal practice area.
Over the course of his career, Chris Carrington has had the opportunity to view the law from many different perspectives. Before co-founding his own practice with partner Doug Richards, he served as a state prosecutor in the 18th Judicial District. Once in private practice, he served as litigation counsel to the Lehman Brothers estate for nearly a decade. Since then, his practice has grown and now focuses exclusively on civil and commercial litigation. Today, Mr. Carrington helps clients with...
Peter Moore is the Chairman of the Business Law Department and a member of the real estate practice group for Robinson, Waters and O’Dorisio. He serves as outside general counsel and corporate counsel for many local and regional businesses. Twenty years of experience as a commercial trial lawyer provides Peter with a unique perspective on his business practice and aids in his ability to structure deals and transactions in a way to minimize risk, avoid litigation, and efficiently achieve...
Erika S. Labelle is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Erika S., 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 Erika S. is held by other top lawyers in the same geographic and legal practice area.
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...
James Eklund is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Environmental. James, 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 James is held by other top lawyers in the same geographic and legal practice area.
During 40+ years of practicing law, Pat has handled almost every conceivable type of civil, criminal or administrative matter. He has been involved in government investigations, grand jury matters, malpractice cases (legal and medical), securities fraud and anti-trust cases. Pat served as the Assistant City Attorney in Lakewood, Colorado from 1973-1974, the Assistant Attorney General for the State of Colorado from 1975-1978 and an Assistant Federal Public Defender for the District of Colorado...
Explore and Learn
2026 Best Lawyers Awards: Recognizing Legal Talent Across the United States
by Jamilla Tabbara
The 2026 editions highlight the top 5% of U.S. attorneys, showcase emerging practice areas and reveal trends shaping the nation’s legal profession.
Gun Rights for Convicted Felons? The DOJ Says It's Time.
by Bryan Driscoll
It's more than an administrative reopening of a long-dormant issue; it's a test of how the law reconciles the right to bear arms with protecting the public.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
How to Choose a Good Lawyer: Tips, Traits and Questions to Ask
by Laurie Villanueva
A Practical Guide for Your First-Time Hiring a Lawyer