Katharine E. Lum at a glance
- Current role
- Judge
- Jurisdiction
- Colorado · State
- Judicial service
- Active
Katharine E. Lum
Judge · Colorado Court of Appeals
Biography
Professional career
- Attorney / Of Counsel, Lass Moses Ramp & Cooper LLC and successor Cooper Ramp Cage Bucar Lewis, family law trial and appellate practice, 2012-2022.
- DBA Access to Justice Pro Bono Star, 2021
- Law clerk to Justice Gregory J. Hobbs Jr., Colorado Supreme Court, 2011-2012
Education
- University of California, Berkeley School of Law — J.D. (2011)
- Northwestern University — B.A. (2006)
Additional information
- Term ends January 12, 2027; on the November 3, 2026 retention ballot.
- 2026 Office of Judicial Performance Evaluation found she meets performance standards (9-0).
- Appointed by Governor Jared Polis September 15, 2022 to succeed Michael H. Berger; assumed office November 16, 2022.
- Appointed in 2022, she serves on statewide committees and brings both trial and appellate expertise to the Colorado Court of Appeals.
- Bar admission: Colorado, 2013
- Of Counsel, Cooper Ramp Cage Bucar Lewis (and predecessor firms)
- This is her only clerkship mentioned in the provided sources.
- Colorado Bar Association CLE Faculty Bio (professional background, clerkship, law practice, committee service)
- Appellate jurist with a strong background in domestic relations law, significant pro bono service, and experience clerking at Colorado’s highest court.
- Member, Colorado Supreme Court Standing Committee on Family Issues
- Volunteer, Metro Volunteer Lawyers (MVL)
Applicable Court Rules & Procedures
Expanded Media Coverage
Statewide
Colorado expanded media coverage requests must comply with Chapter 38, Rule 3 and are submitted to the court before the proceeding; authorization remains subject to court rules, orders, restrictions, and limitations.
you agree with the criteria set forth in Chapter 38, Rule 3, as well as all orders, rules, restrictions, or limitations issued or imposed by the courtRequest for Expanded Media Coverage ↗
Expanded Media Notice
Statewide
Colorado expanded media coverage applications generally must be submitted at least twenty-four hours before the court proceeding, though judges may consider shorter-notice requests in some circumstances.
Expanded Media Coverage applications to be submitted at least 24 hours in advance of the court proceeding in question.Request for Expanded Media Coverage ↗
Published courtroom rules
Shared court rules
Request for Expanded Media Coverage
Colorado Court of Appeals
Scope is limited to the court class in the source claim. Shared court context only; case-type restrictions, exceptions, later amendments and case orders apply. This is not a personal preference or a complete rules inventory.
Official source ↗ · Collected 2026-07-26Sources
Identity source checked July 26, 2026.
Biography sources checked October 12, 2026.
Colorado Judicial Branch official judicial roster
Identity source · HTML · Source checked July 26, 2026
View Colorado Judicial Branch official judicial roster ↗Request for Expanded Media Coverage
Statewide source · HTML · Source checked July 26, 2026
View Request for Expanded Media Coverage ↗