$ 250-300 per hour
Hannah Seigel Proff is a trial attorney who has represented hundreds of adults and juveniles in the state of Colorado over the last 10 years. Hannah is highly experienced in criminal and delinquency cases at all levels from misdemeanors to felonies. Before starting her private practice, Hannah practiced at Johnson & Klein, PLLC as a senior associate where she represented criminal and juvenile clients. Prior to Johnson & Klein, PLLC, Hannah was the policy director for the Colorado Juvenile Defender Center. In that role, she successfully lobbied for legislation in the Colorado General Assembly to improve the treatment of children and youth in the juvenile justice system in Colorado. Hannah was instrumental in getting landmark legislation passed that authorized resentencing hearings for individuals sentenced to life without parole for crimes committed when they were juveniles. Hannah previously spent seven years as a trial attorney in the Denver Office of the Colorado State Public Defender. During this time, she defended thousands of individuals and tried over 30 cases to verdict. As a result of her pretrial investigation and advocacy, Hannah has secured over 40 dismissals for clients before trial.
Hannah’s defense experience and successful track record in the courtroom have led to invitations to lecture and share best practices at legal conferences and trainings across the country. With a genuine focus on collaboration, Hannah shares best practices in complex areas such as defending children charged as adults, and litigation techniques, and motions practice.
Hannah is not only passionate in the courtroom but she is also committed to community, state, and national policy issues. In her spare time, Hannah invests her time volunteering, leading and consulting for several local organizations. Hannah serves as a consultant for private firms and the Colorado Juvenile Defender Center. Hannah is also an active member of the Denver-area legal community and a member of several bar associations.
Hannah has received formal recognition and awards over her career including 5280 Magazine 2017-2023 “Top Lawyer” in juvenile defense. In 2024, 5280 Magazine named Hannah a "Top Lawyer" in Juvenile and Criminal Defense. Hannah was added to the Colorado Super Lawyer list in 2020, and has remained on the list for five years.
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Practice Areas
17 years | 500 cases
17 years | 500 cases
$ 250-300 per hour
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Chat withState: Colorado
Acquired: 2008
No misconduct found
3309 N. Downing Street, Denver, CO, 80205
17 Client Reviews
Showing 1 - 5 of 6 reviews | Professionalism
Posted by Doug | September 14, 2024 | Hired Attorney
Capable, compassionate attorney!
Hannah Proff helped us navigate our case with compassion and integrity. She provided insightful advice and was careful to make sure we had all our questions answered. We felt cared for knew she would fight for our rights. It was an absolute pleasure working with and getting to know, Hannah. She is a ...
Posted by Isaiah | November 02, 2023 | Hired Attorney | Criminal Defense
Extraordinally Excellent Defense Attorney
Hannah Seigel Proff is a phenomenal lawyer who is very knowledgeable and skilled. She is the definition of a professional who has dedicated countless hours to perfect her craft. If you are looking for a legal defense attorney, Hannah is the way to go for genuine and real support!
Posted by Martha | January 08, 2020 | Hired Attorney | Juvenile
Best decision I made!
I cannot say enough wonderful things about Hannah Seigel Proff. After my juvenile son got into serious trouble with the law, we had an attorney who was not an expert in juvenile matters and made our situation considerably worse. I reached out to Hannah for a consultation. Immediately, I could see she...
Posted by Tomas | October 30, 2019
A good lawyer
One of the best lawyers I ever had represent me. I couldn’t ask for more for things that she has helped me with. I highly recommend Hannah, she’s a good woman who knows her stuff. She goes above and beyond for the people she represents.
Posted by Jorge | June 30, 2018 | Hired Attorney | Criminal Defense
Above and beyond!
Hannah is not only a resourceful, effective and brilliant attorney but also an amazing and caring person. Going through a criminal law ordeal is no easy matter and having a professional with you that understands your predicament and is willing to help in a decent and humane way makes the difference b...
"Hannah is an exceptional attorney. She has superior knowledge of the law and looks at cases with a critical eye that few other lawyers possess. The relationships she has built with experts, other attorneys, and opposing counsel give her a strategic advantage in all matters. I have worked with Hannah on a homicide case where her unyielding dedication has resulted in unparalleled representation for a juvenile facing decades of prison. I would not hesitate to partner with Hannah on any case."
"Hannah is a champion of juvenile rights. For years as a Public Defender, Hannah fought tirelessly in diverting society's most vulnerable from further punishment by the government. Her advocacy in juvenile justice policy and her educational interventions in Colorado's schools are precisely the kind of actions that will make our community smarter and safer."
"I worked closely with Hannah for several years. I have the utmost respect and admiration for her understanding of the law and the way she fearlessly fights for others' rights. Hannah is an excellent lawyer and advocate, and I endorse her without hesitation."
Violent crime lawyer
Criminal defense lawyer
2024
Super Lawyer, SuperLawyers
2024
Top 50 Women Super Lawyers in Colorado, SuperLawyer
2023
Top Lawyer, 5280 Magazine
2023
Super Lawyer, SuperLawyers
2022
Top Lawyer, 5280 Magazine
2021
Top Lawyer, 5280 Magazine
2021
Super Lawyer, SuperLawyers
2020
Top Lawyer, 5280 Magazine
2020
Super Lawyer, SuperLawyers
2018
Top Attorneys in Colorado, 5280 Magazine
2017
Top Attorneys in Colorado, 5280 Magazine
2017
Colorado Juvenile Defender Center Volunteer of the Year, Hannah Seigel Proff
2014
Alumni Community Engagemet Award, University of Denver
2008
Pursuit of Justice Award, University of San Francisco School of Law
2018 - Present
Founding Partner, Proff Law, LLC
2017 - Present
Adjunct Professor, University Of Denver, Sturm College Of Law
2016 - 2018
Senior Associate, Johnson, Brennan & Klein, PLLC
2015 - 2016
Staff Attorney for Juvenile Defense and Policy, Colorado Juvenile Defender Center
2008 - 2015
Senior Deputy State Public Defender, State of Colorado
2019 - Present
Colorado Women's Bar AssociationBoard Member, Officer
2018 - Present
ALIGHTVolunteer Attorney
2009 - Present
Learn Your Rights in Colorado (LYRIC)Co-Founder & Chair of the Board of Directors
2012 - 2019
Colorado Women's Bar AssociationSub-Commitee Member
2008
JD - Juris Doctor
2004
BA - Bachelor of Arts
2018
English
Spanish