Jack Donenfeld
Jack A. Donenfeld

Founder of Donenfeld Law

Boulder Office

1942 Broadway, Suite 300
Boulder, CO 80302
+1 303.482.1800

Fax: +1 513.721.1213

Cincinnati Office

119 E. Court Street
Cincinnati, OH 45202
+1 513.632.5311

Fax: +1 513.721.1213

Highest Peer Review Ratings™

Jack A. Donenfeld and his firm have been awarded the “AV” rating by Martindale-Hubbell® Lexis-Nexis®, the highest and most prestigious rating awarded to lawyers for professional expertise and adherence to legal ethics.

Read More..

Bar Register of Preeminent Lawyers™

Donenfeld and the firm have been selected for listing in The Bar Register of Preeminent Lawyers™, the definitive guide to the most distinguished law firms in America, for their work in securities law.

Read More..

Startup America Partnership

We are a member of the Startup America Partnership, a national network of startup communities dedicated to advancing the success of American startups.

Founded by entrepreneur Jack A. Donenfeld, we take a common-sense approach to our work, utilizing not only our own highly-developed skills, but also, when appropriate, those of a hand-picked group of professionals with whom we’ve developed close relationships.

Expertise, Attention and Results


Choosing a law firm can be a challenge. Large firms often assign junior lawyers to matters, and small firms, which provide personal attention, don’t always have the skills that clients need.

We offer the best of both large and small firms: Sophisticated, big firm legal work and a responsive, cost-effective and client-focused approach that only a boutique firm can deliver.

Read More..

Focused Expertise


We focus our talents in these areas, stay on top of our game and deliver good results routinely and predictably:

  • Capital Formation and Securities.
  • Corporate and Transaction-Oriented Business Law.
  • Real Estate Transactions, Project Planning and Finance.
  • Wealth Preservation and Trust Planning.
Read More..

Committed to Sustainability


We’ve been fortunate to work with clients who are committed to sustainable development, energy efficiency and carbon footprint reduction.

We also recognize our own responsibility to contribute to these efforts. And we’re doing all we can to discharge that responsibility.

Read More..