Andrea N. Mahoney

Top rated Estate & Trust Litigation attorney in Denver, Colorado

Mahoney Law, LLC
Andrea N. Mahoney
Mahoney Law, LLC

Practice areas: Estate & Trust Litigation, Estate Planning & Probate, Business Litigation; view more

Licensed in Colorado since: 1996

Education: Oklahoma City University School of Law

Selected to Super Lawyers: 2026 Selected to Rising Stars: 2009

Mahoney Law, LLC

650 S. Cherry Street
Suite 100
Denver, CO 80246 Visit website
Details

As a partner at Mahoney Law, LLC, in Denver, Colorado, Andrea N. Mahoney provides strategic legal counsel to individuals, families and businesses dealing with disputes involving estates, trusts and commercial matters. Her practice covers estate and trust litigation, will contests, probate disputes, guardianship and conservatorship proceedings, and elder law issues, as well as a wide range of business and contract litigation matters.

With nearly three decades of experience, Ms. Mahoney has significant experience and a deep understanding of fiduciary duties, asset protection and dispute resolution. She is known for her meticulous approach to high-stakes litigation and her ability to guide clients through emotionally and financially sensitive conflicts. She regularly represents beneficiaries, fiduciaries and business owners in contested proceedings.

Ms. Mahoney graduated with a Bachelor of Science degree in marketing from Oklahoma State University in 1991, where she was a member of the Gamma Phi Beta sorority. She later went on to pursue her legal studies at the Oklahoma City University School of Law, where she received her Juris Doctor in 1995.

In addition to her litigation practice, Ms. Mahoney’s work includes business transactions and advising clients on risk management and compliance issues. Licensed to practice law in Colorado since 1996, she is admitted to practice before the U.S. District Court for the District of Colorado and the U.S. Court of Appeals for the 10th Circuit.

Ms. Mahoney is actively involved within her legal community. She is the Co-Chair for the Probate and Litigation Committee of the Estate and Trust Section of the Colorado Bar Association and is a member of several legal organizations, such as W.O.L.F. (Colorado Women Owned Law Firms), the Denver Bar Association and various subsections of the Colorado Bar Association.

Practice areas

Estate & Trust Litigation, Estate Planning & Probate, Business Litigation

Focus areas

Estate Planning, Probate & Estate Administration, Trusts, Will Contests, Wills

  • 70% Estate & Trust Litigation
  • 20% Estate Planning & Probate
  • 10% Business Litigation

First Admitted: 1996, Colorado

Professional Webpage: https://www.mahoneylaw.com/attorney/mahoney-andrea-n/

Bar / Professional Activity

  • Co-Chair of the Probate and Litigation Committee of the Trusts and Estates Section of the Colorado Bar Association, 2025
  • ADR Committee, Trust & Estates Section of the Colorado Bar Association
  • W.O.L.F. (Women Owned Law Firms), Member
  • Colorado Bar Association, Trusts & Estates Section, Member
  • Denver Bar Association, Member, 1996 to Present
  • Colorado Bar Association, Member, 1996 to Present
  • U.S. Court of Appeals 10th Circuit, 1997
  • U.S. District Court District of Colorado, 1996
  • Colorado, 1996

Verdicts / Settlements (Case Results)

  • After a three day trial, successfully defended the validity of a Deed and claims for civil theft, breach of fiduciary duty, fraud and unjust enrichment, 2025
  • Successfully reformed a will resulting in my clients inheriting millions of dollars they would not otherwise have inherited, 2025
  • Won appeal, after an oral argument to the Court of Appeals, concerning the invalidation of an amended trust due to undue influence, 2025
  • Defended the validity of a will executed by an elderly woman with dementia who had been hospitalized one week prior to executing her will. We settled the case with an extremely favorable result for our clients, 2024
  • After a 3 1/2 day trial, successfully invalidated an amended and restated trust due to undue influence, 2023
  • Successfully defended the validity of a beneficiary designation after a 1/2 day hearing, 2023

Pro bono / Community Service

  • Regularly visit elderly at an assisted living facility.
  • Crestmoor Community Association, 2019 -2022 (Board Member)
  • Kent Denver School, Numerous Volunteer Positions, 2017 to 2024
  • Kent Denver New Parent Reception Co-Chair
  • Kent Denver Senior Class Parent Representative
  • Kent Denver Junior Class Parent Representative
  • Kent Denver Sophomore Class Parent Representative
  • Chair, Graland Country Day School Carnival, 2017-2020
  • Graland Country Day School Middle School Grade Representative
  • Co-Chair, Volunteers of America Graland Country Day School Holiday Party
  • Graland Country Day School Room Parent for Several Classes/Grades
  • Colorado Youth Rapids Soccer Coach
  • Past Coordinator/President, Washington Park Early Learning Center
  • Past Education Chair, Washington Park Early Learning Center

Educational Background

  • Oklahoma State University, Stillwater, Oklahoma, B.S., Major: Marketing, 1991

Scholarly Lectures / Writings

  • Presenter at the 2025 Estate Planning Retreat – Claims Against an Estate – Types, Timeliness and When and If to Pay Them
  • Presenter at the 2022 Trust and Estate Fall Update concerning the use of mediation and arbitration provisions in estate planning documents
  • Presenter at the 2024 Estate Planning Retreat – Best Practices for Estate Planers in Preventing a Will or Trust Contest and the Role of an Estate Planning Attorney if a Contest if Filed

Honors

  • Selected to Super Lawyers ® (Estate and Trust Litigation), 2026
  • 5280 Top Lawyer, Probate Litigation, 2026
  • Colorado Super Lawyers-Rising Star, 2009

Industry Groups

  • Fiduciaries
  • Trust Companies
  • Trust Departments

Office location for Andrea N. Mahoney

650 S. Cherry Street
Suite 100
Denver, CO 80246

Phone: 720-502-9856

Selections

1 Year Super Lawyers
1 Year Rising Stars
  • Super Lawyers: 2026
  • Rising Stars: 2009

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