Arnulfo D. Hernández

Arnulfo D. Hernández

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Colorado Criminal Defense Attorney
Arnulfo D. Hernández has dedicated his career to protecting the rights of others. For a decade, he has served his community through the legal representation of accused individuals. His law practice is broad and includes the defense of misdemeanors, felonies, and white-collar crimes. He is a courtroom attorney that regularly appears before Colorado state and federal judges. As he is a highly experienced criminal lawyer, Arnulfo D. Hernández provides defense strategies and tactics that other attorneys cannot. Through negotiation, persuasive argument, or jury trial, he always secures the best resolution possible for his client.

Colorado Immigration and Crimmigration
Arnulfo also protects the rights and liberties of others through immigration and crimmigration defense. Immigration law is a highly complex practice area that serves one of the most vulnerable populations in our country—those with immigrant or temporary status. Arnulfo D. Hernández has many years of experience guiding his clients through the sensitive, and sometimes lengthy process, of obtaining American citizenship. He regularly represents individuals in immigration proceedings before federal agencies including the U.S. Citizenship and Immigration Services, the Executive Office for Immigration Review, and the Board of Immigration Appeals. In situations where his client has been accused of a crime and faces immigration removal proceedings, a practice area known as “crimmigration,” Arnulfo has the hybrid knowledge to provide the most successful defense on all fronts.

Arnulfo D. Hernández is a leader in the Colorado legal community. He is the current President of Region XIII of the Hispanic National Bar Association (2017-Present) covering Colorado, Kansas, Nebraska, and Wyoming. He is also a past President of the Colorado Hispanic Bar Association (2016) and former Chair of the National Hispanic Bar Association's Immigration Committee (2014-2018). He stays active in volunteer activities sponsored locally by the Colorado Lawyers Committee and Metro Volunteer Lawyers. For its dedication to the community, Hernandez & Associates was presented with the Inclusiveness@Work award in the Law Firm category by the Center for Legal Inclusiveness in 2019.

Current Employment Position

  • Managing Partner


  • University of Denver College of Law, Denver, Colorado
    • J.D. - 2005
  • University of Denver College of Law, Denver, Colorado
    • LL.M. - 2007
    • Major: Taxation
  • University of the Incarnate Word, San Antonio, Texas
    • B.A. - 2001
    • Honors: cum laude
    • Honors: With Honors
    • Honors: Dean's List
    • Honors: Pi Sigma Alpha (Founding Member)
    • Major: Political Science
    • Major: Psychology
  • Universidad del Noreste, Tampico
    • 1997
    • Major: General Latin American Studies

Classes & Seminars

  • Immigration 101: Immigration Defense Under the New Administration, Hispanic National Bar Association - 2017
  • CLE: Ethical Considerations in Addressing Diversity & Inclusiveness in the Workplace, Speaker, Colorado Hispanic Bar Association, 2016
  • Stitches or Surgery? What Will It Take to Fix Our Broken Immigration System?, Moderator, Hispanic National Bar Association, 2016
  • Legal Developments in US Immigration Law, Speaker, Hispanic National Bar Association, 2015
  • Private Practice Law, Public Interest Heart, Speaker, University of Denver Sturm College of Law, 2014
  • Becoming a Lawyer 101, Speaker, Hispanic National Bar Association, Annual Convention, 2013
  • A Primer on Immigration, Speaker, The University Club of Denver, 2012
  • Ethics, Criminal Pleas and Immigration Law (Doing the Right Thing for the Alien Criminal Defendant), Speaker, Colorado Bar Association, 2012
  • Immigration Consequences of Criminal Convictions, Speaker, City of Aurora Public Defender’s Office, 2011
  • When Should I Consult an Immigration Attorney, Speaker, American Inns of Court Rhone-Brackett Chapter, 2011

Pro-Bono Activities

  • Colorado Lawyers Committee Legal Night, 2016 to Present
  • Denver Bar Association, Metro Volunteer Lawyers, 2007 to 2010
  • Legal Night at Centro San Juan Diego, 2005 to Present
  • Legal Night at Centro Mi Casa, 2005 to Present

Past Positions

  • Law Firm of Joseph C. Cohen, Associate Attorney, 2005 to 2007
  • Attorney General’s Office of Colorado , Foreign Prosecutions Unit, 2003 to 2004
  • Procuraduría General de Justicia del Estado de Guanajuato, Clerkship, 2002 to 2003


  • Spanish
  • English

Published Works

  • Interview, Top Litigators, Law Week Colorado, 2018
  • Interview, A Partnership in Every Sense, Law Week Colorado, 2018
  • Author, Update to Immigration Law for the Colorado Practitioner, Colorado Bar Association, Continuing Legal Education in Colorado, Inc., 2016
  • Interview, Practicing Crimmigration is in the Details, Law Week Colorado, 2016

Professional Associations

  • Hispanic National Bar Association, Regional President, Region XIII - 2017-Present; Chair, Immigration Law Section, 2014-2017; Immigration Committee, 2012-2017; General Member, 2012-Present
  • Colorado Bar Association, General Member, 2002 – Present; Colorado Bar Association Leadership Training (COBALT), Sessions Committee, 2017; Colorado Bar Association Leadership Training (COBALT), 2016; Nominating Committee, 2016 – Present
  • Colorado Hispanic Bar Association, President, 2016 - 2017; President Elect, 2015 - 2016; Elected Board Member; Judicial Nominations and Endorsements Committee, 2013 - 2014
  • Colorado Women’s Bar Association, General Member, 2016 to Present
  • National College for DUI Defense, General Member, 2014 to Present
  • National Lawyers Guild, National Immigration Project, General Member, 2014 to Present
  • Faculty of Federal Advocates, General Member, 2011 to Present
  • American Bar Association, General Member, 2008 - Present; Immigration Committee, 2008– Present; Criminal Justice Section, 2008 – Present
  • Colorado Criminal Defense Bar Association, Lifetime Member, 2008 to Present
  • American Immigration Lawyers Association, General Member, 2008 to Present
  • National Association of Criminal Defense Lawyers, General Member, 2006 to Present
  • Denver Bar Association, General Member, 2002 to Present
  • Rhone-Brackett Chapter of the American Inns of Court, General Member, 2002 to Present

Practice Areas

  • Criminal Defense 80%
  • Immigration Law
  • Assault
  • Child abuse
  • DUI
  • Drug Charges
  • Fraud
  • Sex assault
  • Traffic violations

Bar Admissions

  • U.S. Supreme Court, 2019
  • U.S. Court of Appeals 9th Circuit, 2012
  • U.S. District Court District of Colorado, 2007
  • U.S. Court of Appeals 10th Circuit, 2007
  • U.S. Tax Court, 2007
  • Colorado, 2006


  • Top Latino Lawyers, Latino Leaders Magazine, 2016-2019
  • Colorado Super Lawyer, Super Lawyers Magazine, 2019-2023
  • Chris Miranda Outstanding Hispanic Lawyer, Colorado Hispanic Bar Association, 2019
  • Adult Male Athlete of the Year, Denver Athletic Club, 2019
  • Barrister's Best “Best Immigration Lawyer,” Law Week Colorado, 2018-2019
  • Denver's Top Lawyers (Immigration Law), 5280 Magazine, 2017, 2018, 2019
  • 10/10 Superb, AVVO, 2016 – Present
  • Top Litigators, Law Week Colorado, 2018
  • Elected, Colorado Governor John Hickenlooper’s Board of Ethics
  • Rising Star, Colorado Super Lawyers, 2014-2016
  • Arnulfo D. Hernández was included in the 2021 Edition of The Best Lawyers in America© for Criminal Defense
  • Best Lawyers Recognition, 2024