Our Team

Meet Our Attorneys

Our team of 10 experienced attorneys brings decades of combined experience to your most challenging legal matters. Each attorney is committed to understanding your business and achieving your goals.

Leadership

Executive Committee

Visionary leaders guiding our firm and clients to success.

Margaret Sullivan

Margaret Sullivan

Managing Partner

Margaret founded Summit Law Group in 1998 after 15 years at a major Denver firm. She has tried over 100 cases to verdict and is recognized as one of Colorado's premier business litigators.

Credentials

  • University of Colorado Law, J.D.
  • Colorado College, B.A.
  • Super Lawyers - Top 50 Colorado
  • Best Lawyers in America
David Hartman

David Hartman

Partner, Business Litigation

David handles complex commercial disputes with over 20 years of trial experience. He has secured significant verdicts and settlements in breach of contract, fraud, and business tort cases across Colorado.

Credentials

  • University of Denver Law, J.D.
  • CU Boulder, B.S.
  • Colorado Super Lawyers
  • AV Preeminent Rated
Rebecca Chen

Rebecca Chen

Partner, Corporate & M&A

Rebecca brings 18 years of transactional experience to Summit. She has guided dozens of Colorado businesses through acquisitions, sales, and complex corporate restructurings.

Credentials

  • Stanford Law School, J.D.
  • UCLA, B.A. Economics
  • Best Lawyers - Corporate Law
  • Colorado Bar Foundation Fellow
Partners

Our Partners

Accomplished practitioners leading our practice areas.

James Montoya

James Montoya

Partner, Litigation

Contract Disputes, Business Torts

Sarah Patterson

Sarah Patterson

Partner, Employment

Employment Litigation, Executive Agreements

Michael Chen

Michael Chen

Partner, Real Estate

Commercial Transactions, Development

Jennifer Walsh

Jennifer Walsh

Partner, Corporate

Business Formation, Governance

Associates

Rising Talent

Our associates bring fresh perspectives and exceptional credentials.

Christopher Lee

Senior Associate - Litigation

CL

Amanda Rodriguez

Senior Associate - M&A

AR

Nathan Brooks

Associate - Real Estate

NB
Our Culture

A Collaborative Environment That Drives Excellence

We believe the best results come from diverse perspectives working together. Our culture emphasizes mentorship, professional development, and a commitment to both our clients and our community.

150+
Professionals
40%
Diverse Leadership
50K+
Pro Bono Hours
Top 10
Best Places to Work
Join Our Team
Team collaboration

Work With Our Team

Ready to discuss how we can help you achieve your goals? Our team is ready to listen.

Schedule a Consultation