Mary Sue Greenleaf


Denver, Colorado

Phone: 303.299.8113

Fax: 303.298.0940

[email protected]


  • Juris Doctor, University of Colorado Law School, 2014
  • Bachelor of Science in News-Editorial Journalism, Texas Christian University, 2011

Mary Sue Greenleaf’s practice focuses on construction, commercial, real estate, and insurance litigation.

Mary Sue works with general contractors, subcontractors and property owners as they navigate litigation and other potential challenges within the construction process. From project inception and financing through construction, she advises, negotiates and drafts contracts and agreements that support the strategic business goals of her clients.

She draws from her litigation experience to help resolve issues as quickly and efficiently as possible. She has represented clients in various commercial and civil litigation matters in both state and federal court including contract disputes, insurance coverage disputes, as well as construction disputes, involving construction defect claims, payment disputes, mechanics lien and payment bond claims, and other related issues.

When she is not practicing law, she is an active member in numerous professional and community organizations. Mary Sue is heavily involved with the Colorado Women’s Bar Association and chaired the Boulder Chapter. She is also active in the American Bar Association’s Construction Industry Forum.

In addition, Mary Sue serves as chair of the firm’s Women’s Initiative.

Publications & Presentations




  • Hot Topics in Construction Contracting
    Annual Colorado Construction Law Seminar | February 3, 2023
  • Documenting and Pursuing Claims During Construction
    Annual Colorado Construction Law Seminar | March 4, 2022
  • Project Coordination – Contractual Pitfalls and Risk Shifting
    Annual Colorado Construction Law Seminar | March 2020

Professional Activities

  • Colorado Women’s Bar Association
  • American Bar Association
    • Forum on Construction Law
  • Boulder County Bar Association
  • Colorado Bar Association


  • Best Lawyers in America, “Ones to Watch,” Denver
    • Commercial Litigation (2021-2024)
    • Litigation: Construction (2021-2024)
    • Litigation: Real Estate (2022-2024)
  • 5280 Magazine, “Top Lawyer,” Construction (2024)