Bar and Court Admissions
Clarissa Collier represents sophisticated clients in high-stakes medical malpractice, professional liability, personal injury, and commercial litigation matters. She is a strategic and effective advocate for clients, including at trial, where she has established skills to lead at any phase. Clarissa also has extensive experience winning for clients early in litigation, having negotiated favorable settlements in at least 60 matters.
In addition to her litigation practice, Clarissa brings extensive experience handling white collar cases and investigations. She has conducted independent internal investigations to minimize clients’ legal exposure. She has also responded to federal and state government investigations, including investigations initiated by the U.S. Departments of State, Justice, and Treasury.
Clarissa is listed as a Colorado Rising Star, and was the recipient of the prestigious Gary McPherson Award for Outstanding Young Lawyer of the Year in 2016.
Medical Malpractice & Professional Liability
- Won a Frye-Mack hearing to exclude expert testimony and Cranial Compression Ischemic Encephalopathy (CCIE) causation theory in a Minnesota birth injury case involving issues of first impression. The resulting order will help defense attorneys nationwide against CCIE claims.
- Successfully represented Universal Health Services as second chair in a negligence jury trial involving alleged patient-on-patient sexual assault in a mental health facility. The case settled favorably after close of the evidence and prior to closing statements.
- Defending an ObGyn practice against a high-exposure case involving alleged birth injury.
- Defending a large Washington D.C. hospital in a high-exposure case involving transplantation medicine.
- Defending a Washington D.C. hospital in a high-exposure case involving the care and treatment of a now-deceased patient's myasthenia gravis.
- Defending a full-service community hospital in Maryland in a high-exposure birth injury case.
- Defending a Washington state hospital in a high-exposure case involving the care and treatment of a stroke patient.
- Bd. of Cnty. Comm'rs of Boulder Cnty. v. Crestone Peak Res. Operating LLC, No. 19CA2040 (Colorado Ct. App. 2021) - Won a published opinion for Crestone Peak Resources, protecting strategically important aspects of the company's original $900M investment and affirming the trial court's summary judgment rulings for WTO's client after Boulder County sought to invalidate several of the company's oil and gas leases.
- Successfully negotiated de minimis settlements—prior to clients' depositions—for insurance companies facing bad faith denial and unreasonable delay of payment claims.
- Won summary judgment for Crestone Peak Resources against Boulder County in a case involving an attempt to invalidate a key oil and gas lease that would have materially impacted Crestone's $900 million investment, thereby clearing a major hurdle to significant future development.
- Obtained $2.3 million summary judgment in federal court in Utah for a Fortune 500 financial institution enforcing its rights as a creditor against a corporate debtor.
- Solo-chaired a fraud and negligent misrepresentation jury trial in federal court in Colorado arising from a business dispute.
- Successfully negotiated a de minimis settlement—prior to the client's deposition—for an automobile manufacturer facing a product liability claim.
- Defending an international automobile manufacturer in a high-exposure product liability case involving allegations of a defective seatback.
- Defending an international automobile manufacturer in a high-exposure product liability case involving allegations of a defective vehicle roof.
- Represented a franchisor of more than 350 restaurants in its premises liability litigation, favorably settling numerous cases for the client.
- Represented a ground shipping company in a slip and fall case and favorably settled the case for less than what was offered pre-litigation.
- Favorably settled several trucking accident lawsuits involving significant injury and death against a major brewing company.
Investigations & Compliance
- Represented an oil and gas developer in responding to a multi-agency securities investigation involving the Securities Exchange Commission and several state securities boards and divisions.
- Conducted an internal investigation for a Fortune 500 holding company for various life insurance companies and investment firms relating to a former employee's allegations of retaliation, discrimination and violations of the Securities Exchange Act.
- Represented a major defense service contractor in voluntarily disclosing potential export controls and trade sanctions violations to the Departments of State, Commerce, and Treasury.
- Represented a defense service contractor in response to a Department of Justice investigation involving alleged Foreign Corrupt Practices Act violations.
- Obtained a significant excessive force settlement payment for a pro bono client who survived an assault by police.
- Represented a school district on a pro bono basis in a high-profile lawsuit challenging the constitutionality of the Colorado school finance system.
- Successfully represented a terminally ill client in guardianship proceedings by obtaining appointment of guardians for the client's four minor children before his death.
- Favorably settled a negligence case for nuisance value for a state sanctioned rodeo. The settlement allowed the rodeo to remain in business.
Publications & Speaking Engagements
"Living With & Mitigating the Threat of Medical Malpractice," presented at the University of Northern Colorado School of Nursing, (December 2, 2021).
"An Examination of the Collateral Source Rule," presented at the MedStar Defense Counsel's Virtual Retreat, (June 24, 2021).
"2014 Associates Campaign for Justice—"May I See Your ID?," The Colorado Lawyer, Vol. 43, No. 4, (April 2014).
"Exploring the Limits of the In Pari Delicto Defense," ABI Young and New Members Committee eNewsletter, Vol. 10, No. 2, (March 2012).
Holland & Hart LLP
Legal Memberships, Activities, and Honors
Colorado Rising Stars
Personal Injury - Medical Malpractice Defense, 2022
Business Litigation, 2019-2021
Gary McPherson Award for Outstanding Young Lawyer of the Year, 2016
Colorado General Counsel Mentoring Program, 2015 and 2017
Colorado Lawyers Committee Team of the Year Award
Lobato Litigation, 2012
American Bar Association
Former Delegate to the ABA House of Delegates
Colorado Bar Association, Board of Governors, 2013-2019
Denver Bar Association
Faculty of Federal Advocates
Sam Cary Bar Association
Legal Aid Foundation of Colorado
Board of Trustees, 2017-2018
Associates Advisory Board, Co-Chair, 2015-2017
Community Memberships, Activities, and Honors
Colorado Lawyer Trust Account Foundation
Member of Board of Directors
Ray of Hope Cancer Foundation
Chair of Board of Directors
Downtown Denver Leadership Program
Spending time with family, enjoying the great outdoors, traveling, and watching the Denver Broncos