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"Remember, remember always, that all of us, and you and I especially, are descended from immigrants and revolutionists."

~ Franklin D. Roosevelt

Attorney Katharine Speer Rosenthal strives to connect personally with her clients to understand their goals and make a meaningful difference in their lives. She is proud to serve on the front lines protecting the rights of immigrants.

Ms. Rosenthal has lived and worked in Mexico, Guatemala, Honduras, and Bolivia. She is bilingual in English and Spanish, which helps her to communicate U.S. immigration law in understandable terms in both languages.

Ms. Rosenthal's client-centered approach focuses on excellent representation, tireless problem-solving, and clear communication with her clients. She believes every person has a right to an honest opinion, compassionate service, and the opportunity to make informed decisions about their life.

Community Involvement 

Attorney Rosenthal has served as a consulting attorney to the Mexican Consulate in Denver and on the Executive Committee of Colorado Chapter of the American Immigration Lawyers Association (AILA Colorado) from 2012 to 2018. She currently chairs the DMV and SSA Liaison Committee of AILA Colorado and serves on the Practice Management Committee. She also mentors volunteer attorneys through the Rocky Mountain Survivors Center (RMIAN)

Ms. Rosenthal serves as a Practice Monitor for the Colorado Office of Attorney Regulation Counsel. In that role, she consults with other attorneys on improving their systems and processes to better serve clients, decrease stress, and enhance work satisfaction. She is also a mentor with the Colorado Attorney Mentoring Program (CAMP), which allows her to work one-on-one with attorneys either early in their career or at times of transition.

Ms. Rosenthal enjoys giving "myth busting" talks on U.S. immigration law and policy. Please contact us if you would like to request a presentation to your group.

Recent speaking engagements


"U.S. Immigration Law & Policy," Guest lecturer, The Spanish Speaking Lawyer: Introductory Legal Skills and Vocabulary in Spanish, University of Denver Sturm College of Law, April 2023.

"The Complexities & Politics of Immigration," Guest lecturer, Urban Social Problems: Innovative Solutions to Poverty, University of Colorado Denver School of Public Affairs, April 2022


"Family-Based U.S. Immigration for Ukrainians," presented by the Colorado Women's Bar Association, March 2022


"Climate Change, Migration, and Post-Pandemic Practice," Annual Conference of the Colorado Chapter of AILA, February 2022



University of Denver Sturm College of Law, JD, Order of St. Ives, 2009

University of Kansas, BA, Summa Cum Laude, Phi Beta Kappa, 2004

Bar admissions


Supreme Court of Colorado, admitted 2009

Federal District Court of Colorado, admitted 2011

Tenth Circuit Court of Appeals, admitted 2014

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