Hannah Seigel Proff

Hannah Seigel Proff

5.0
Rating: 10.0

Licensed for 17 years

Juvenile law Lawyer at Denver, CO
Practice Areas: Juvenile, Criminal Defense, Sex Crime, Expungement

3309 N. Downing Street, Denver, CO

About Hannah

Biography

Practice Areas

4

Practice Areas

Juvenile Law 45%

17 years | 500 cases

45%
Criminal Defense 40%

17 years | 500 cases

40%

Fees and Rates

Cost

Hourly Rates

$ 250-300 per hour


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in Colorado for 17 years

State: Colorado

Acquired: 2008

Active

No misconduct found

Location

Proff Law, LLC

3309 N. Downing Street, Denver, CO, 80205

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Hannah Seigel Proff's Reviews

Avvo Review Score

5.0 /5.0

17 Client Reviews

Filter Avvo Reviews (17) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 1 - 5 of 5 reviews | Case Results

Posted by Andrea | November 25, 2025 | Hired Attorney | Domestic Violence

Highly recommend

Hannah went to bat for me and hit out of the park. She was able to get DV charges, stemming from a toxic marriage, dismissed from 2010 and the case sealed. I felt heard and that she cared. She kept me updated and worked fast. She’s amazing. I highly recommend!!

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... conducts her business with the highest integrity, and she is an expert in juvenile law and explaining juvenile law, and an attorney who can effectively negotiate outcomes for her clients. Additionally, she takes a humanistic approach to her clients and their families while strategically and diligently achieving the best possible outcome. She resolved all our cases under a global plea through her expert negotiation skills, that I feel many attorneys could not achieve (or take the dedication and time necessary to do it). She advocates tirelessly and effectively for her clients and their families. She is bright and intelligent, an expert at what she does, and she has a passion that shows through her work and dedication to her clients. I am grateful we hired her! No one wants to be in a situation in which you have to hire an attorney for your juvenile child, but I know, hiring Hannah got us the best outcome and also gave us the assurance we would get through our situation.

Posted by anonymous | February 26, 2019 | Hired Attorney | Domestic Violence

Victim Advocate and Community Activist

To whom it may concern, I would be remiss not to take the time out to acknowledge Hannah Proff and Proff Law, LLC. My integrity , profession, and reputation was in jeopardy. There I stood in total disbelief after answering my front door. There stood a Adams County Sheriff and in hand he had a summo...ns for me to appear in court due to a protective order or commonly known as a restraining order. I was speechless. I called for legal counsel and at this point panic had set in. I was trying to find someone that would not require my first born to represent me. I literally searched high and low. Just when I was on the edge of giving up. I received the 10th referral and in making that call on the other line was someone who cared about what I cared about. My reputation was on the line, my profession was on the line and my integrity was in question. I begin to defend my cause and gather proof of my innocence in this matter and Hannah Proff took the bull by the horns and rode it to the bitter end. The one thing that I kept repeating to Hannah was this, I need this to go away. I need this to go away Hannah..grateful for her taking interest and concern in this unforeseen circumstance and made it go away.

Posted by Jeff | November 12, 2018 | Lawsuits & Disputes

Exceptional professional service

Skeptical from the start due to my many bad experiences with lawyers Mrs. Seigel hit the ground running with my case she had many professionals right behind her covering every aspect of my case. I was in shock never in my life have I had this kind of service. Usually a lawyer is to busy to do anythin...g but push you into a deal. It was quiet thee opposite with her. She did exactly what a lawyer should do looked out for my best interest. In thee end my case was dismissed and I could not be happier. Even now 6 months later she is helping me get things straight. If your looking for a great professional, knowledgeable, give it to you straight kind of lawyer this is your lady. Thank you Mrs Hanna seigel

Posted by Jeff | February 06, 2014 | Criminal Defense

Professional and Passionate Advocate

I recently had the privilege of working with Hannah Proff on a challenging criminal case. As a forensic examiner and consultant, I could really appreciate Hannah’s approach to the defense of her client. She made me feel that I was part of a team and I believe the exchange of ideas between us helped... to develop a viable defense strategy—the result in this case was a not-guilty verdict. Hannah is passionate about defending her clients and is extremely capable and skilled in the courtroom. It was a real pleasure working with her on this case and I look forward to the next time I can work with such an accomplished professional. Jeff, CFC, CMI Criminalist/Owner JDS Criminalistics, LLC

See All Client Reviews

Hannah Seigel Proff's Lawyer Endorsements

Endorse Hannah
Jennifer A. Kilpatrick headshot
Jennifer Kilpatrick

Criminal defense lawyer | Mar 18

Relationship: Worked together on matter

"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."

Tara Nicole Jorfald headshot
Tara Jorfald

Juvenile law lawyer | Mar 22

Relationship: Fellow lawyer in community

"Hannah is one of the topmost juvenile justice advocates in Colorado. I highly recommend her."

Mark A. Blechman headshot
Mark Blechman

Juvenile law lawyer | Jan 29

Relationship: Fellow lawyer in community

"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."

Stephanie Camille Whalum headshot
Stephanie Whalum

Juvenile law lawyer | Sep 10

Relationship: Worked together on matter

"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."

View All Endorsements
Jennifer A. Kilpatrick headshot
Jennifer Kilpatrick

Violent crime lawyer

Stephanie Camille Whalum headshot
Stephanie Whalum

Criminal defense lawyer

Experience

Rating:  10.0 (Superb)

Honors

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

Work Experience

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

Associations

2019 - Present

Colorado Women's Bar Association

Board Member, Officer

2018 - Present

ALIGHT

Volunteer Attorney

2009 - Present

Learn Your Rights in Colorado (LYRIC)

Co-Founder & Chair of the Board of Directors

2012 - 2019

Colorado Women's Bar Association

Sub-Commitee Member

Education

2008

University of San Francisco School of Law

JD - Juris Doctor

2004

University of Denver

BA - Bachelor of Arts

Publications

Languages

English

Spanish

Avvo Rating

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