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Erin Frohardt Tatman


P. 303.244.1920 | F. 303.244.1879


Erin F. Tatman defends clients against professional liability and product liability lawsuits. Her clients include individual healthcare providers, healthcare organizations, lawyers, and law firms. Erin also defends corporations against product liability claims, class actions, and personal injury. Colorado Super Lawyers has named Erin a Rising Star for five straight years.

A chemist by training, Erin is at home debunking plaintiffs’ bad science and developing scientifically sound defenses for her clients.

Prior to joining Wheeler Trigg O'Donnell in 2013, Erin served as a judicial law clerk to The Honorable Jerome A. Holmes of the United States Court of Appeals for the Tenth Circuit. Erin has also worked as a land assistant for a large oil and gas company in Colorado and as a research fellow at the National Institutes of Health Imaging Probe Development Center and Laboratory of Computational Biophysics.


Professional Liability

  • Hired two weeks before trial to defend a client in Pennsylvania against medical malpractice and negligence claims. The case settled during voir dire for well under half the plaintiff's demand.
  • Hired at the start of expert discovery in Washington to defend a healthcare provider against malpractice and negligence claims brought by a patient who suffered a stroke. The case settled extremely favorably just before trial.
  • Won motion to compel plaintiffs' privilege documents in a legal malpractice dispute in Illinois and defended the motion to the Illinois Supreme Court.
  • Successfully defended a physician and hospital in a birth trauma case in Illinois. Handled damages claims, prepared defense witnesses, and conducted a mock trial. The case settled a month before trial on terms that saved WTO's client eight figures. The client was extremely pleased.

Product Liability

Class Actions

  • Represented seven codefendants in a property insurance class action lawsuit in Colorado. Plaintiffs claimed they were systematically underinsured in a "monumental" conspiracy, in violation of federal RICO and antitrust laws, and involving virtually all property insurers in Colorado as well as industry trade groups. WTO served as liaison counsel and argued the successful motion for the fee award of more than $1.5 million.
  • Represented Whirlpool Corp. in various consumer product class action matters nationwide.
  • Represented Farmers Insurance in two Washington insurance class actions alleging unrepairable damage claims under UIM property-damage coverage.
  • Won summary judgment for USAA based on a plaintiff's lack of standing in a putative class action regarding the contractual time limitation for medical payments coverage.
  • Represented a major commercial insurer in nationwide concussion and traumatic brain injury class action litigation involving the National Collegiate Athletic Association, National Hockey League, and U.S. Soccer Federation.

Other Representative Experience

  • Counseled a healthcare industry insurer on best practices for risk management amid the COVID-19 pandemic.
  • Defended against claims in New Mexico that WTO's client failed to appropriately assess the risk represented by two siblings who killed their foster mother.
  • Successfully represented franchisor Comfort Dental Group in a dispute in which a subfranchisor challenged the legality of the underlying business model. WTO also squashed follow-on litigation involving a complex lease dispute.

Legal Memberships, Activities, and Honors

The Best Lawyers in America
    Ones to Watch - Medical Malpractice Law - Defendants, 2021-2024
Colorado Rising Stars
    Professional Liability Defense, 2016-2022
Legal Aid Foundation
   Associate Advisory Board, 2015-2019
   Associates Campaign Representative, 2015-2018
Colorado Women's Bar Association
Colorado Defense Lawyers Association
Colorado Bar Association
    Health Law Section
Denver Bar Association

Community Memberships, Activities, and Honors

Denver Kids Inc., 2015-2019
   Mentor, 2018-2019
   Board of Directors Development Task Force
   Young Professionals Council, Vice Chair, 2018-2019
   YPC Networking & Professional Development Chair, 2017-2018

Personal Interests

Climbing, crossword puzzles, and camping with her husband and dogs

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