"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 in order to understand their goals and make a meaningful difference in their lives. In the current climate, 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 translate U.S. immigration law into 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 

Ms. Rosenthal currently chairs the DMV and SSA Liaison Committee of AILA Colorado. She is also mentors volunteer attorneys through the Rocky Mountain Survivors Center (RMIAN), and she previously served as a consulting attorney to the Mexican Consulate in Denver and is a Past Chair of the Colorado Chapter of the American Immigration Lawyers Association (AILA Colorado) (2016-2017).

Additionally, Ms. Rosenthal has served as a practice monitor for the Colorado Office of Attorney Regulation Counsel, assisting other attorneys in improving their practices.

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


"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