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Colorado Defense Attorney, Cassandra

Location:  Denver, Colorado
Phone:  (720) 479-8574
Fax:  (720) 458-1344


Cassandra Monahan is the Senior Associate at Wolf Law. Ms. Monahan was born in Denver, and although she grew up on the East Coast, she has returned to Colorado to begin her legal career.

Ms. Monahan graduated cum laude from American University Washington College of Law where she served as Senior Note & Comment Editor on American University’s International Law Review.

She earned her bachelor’s degree from the University of Maryland in Criminology & Criminal Justice and Psychology. During law school, Ms. Monahan was a student attorney with the Criminal Justice Clinic where she represented clients on misdemeanor charges.

Ms. Monahan is committed to providing the highest quality representation to individuals facing criminal charges and believes that understanding each client’s unique life circumstances is key to effective advocacy. In her free time, Ms. Monahan is an avid runner and hiker. 

Areas of Practice

100% Criminal Defense

Litigation Percentage

100% of Practice of Devoted to Litigation

Bar Admissions

State of Colorado, 2020

Education

American University Washington College of Law
Juris Doctorate, 2020, Cum Laude

University of Maryland
Bachelor of Arts, Criminology & Criminal Justice and Psychology, 2017

Honors and Awards

  • 2025 Super Lawyers Rising Stars
  • 2024 Super Lawyers Rising Stars
  • 2023 Super Lawyers Rising Stars

Professional
Associations and Memberships

Colorado Criminal Defense Bar, 2020-Present

Pro Bono Activities

Discount and Pro Bono services for current and former military service members

Featured Blogs
  • Answers to 6 Common DUI Questions
  • Assault or Self-Defense?
  • happy hour to sober
  • breathalizer thumbnail
  • 4/20 safety
  • domestic violence cases
Certifications
Testimonials

Deferred Sentence, Sealed Record For Pot Possession

In July of 2009 I was charged with possession of marijuana. I contacted Jeff with Wolf Law and worked with him to find my best options. Jeff was very knowledgeable, honest and professional. He worked quickly and effectively to get me a deferred sentence and ultimately seal the record of this infraction. I also had a prior charge that was many years old that was also a deferred sentence. Jeff worked to seal that record in order help maintain my privacy. I now have used this ability to change my field of work and pass a background check with no infractions visible on my record. My life is moving onward and upward due to the help that was provided by Wolf Law. Thank You Jeff!

— John

My Heart Was Ripped Out, Wolf Law Showed Compassion

In early March, my heart was seemingly ripped out. I was driving into town with my two children, 5 and 2, in extremely inclimate weather conditions when my car hit a patch of ice and I lost control of my vehicle. It was a horrific accident and I was the only survivor in my vehicle. As if this wasn’t the worst thing that could have ever happened, I was charged with careless driving resulting in death, two counts. I was referred to Mr. Wolf by four separate law offices, as well as the BAR Association. The District Attorney’s office attempted to raise my charges to much more serious felony charges that could have carried very harsh sentences. Mr. Wolf was able to maintain the original charges and speak compassion and mercy to the the judge, leaving me facing only community service and a short probation with minimal associated probation costs. I would recommend his services to anybody and everybody. Not only is he incredibly knowledgeable, but he is passionate about his work, while showing the utmost compassion and respect for his clients’ situation.

— Jamie

Professional, Passionate and Knowledgeable

This was my first experience with the law, and Jeffrey Wolf did a fantastic job of guiding me and my family through this. He was always available to answer any concerns I had, realistic in terms of what we were looking at, and passionate about getting us through this. He truly took my case to heart and was a lifesaver through a trying time. Thanks to him, I still have a chance to succeed in my career and lead a normal life!

— Tyler C.

Demonstrated a deep understanding of my specific legal issue

Mr. Wolf was exceptionally understanding and patient during a difficult time. His expertise, compassion, knowledge of the law, and support were invaluable. I would wholeheartedly recommend Mr. Wolf and his team.

— Pablo Ulloa

Colleen is wonderful!

Colleen was so helpful and it was comforting to have her knowledge and experience working on our emergency. She took a process we had no experience with and made us feel secure and empowered. She did so much for us, and I can’t thank her enough or recommend her more highly!

— James Sehota

Sex offender deregistration

Colleen Kelly and her team, supported me and guided me through the process of getting off the registration . I had attempted over the years to do this on my own and at one point hired another attorney to assist me. These efforts were futile, I ended up with unnecessary years ( decades ) of suffering financially, humiliating encounters with personal relationships, landlords, employers, churches and other organizations.
Colleen and team were very professional and knew the steps that I needed to go through to get the job done. I would highly recommend Wolf Law, for their professionalism and caring.

— Alvin

Best in the business

Working with Mr. Wolf was an absolute privilege. Having never been in trouble with the law before, Jeff was there for me each step of the way from the day before I turned myself in, to the very end of my case, which he was able to help me get dismissed.

A true professional, he was nothing but honest and fair to me. He showed me and my family the utmost respect through a difficult time. At a point when I felt alone, Jeff was there to make sure I would be ok.

He is true to his word, and each step of the way, he and his team will keep you informed on any and all items that need to be addressed.

Because of Mr. Wolf, I can continue with my life and move forward. Thank you, Jeff Wolf, and everyone at the firm. If anyone I know ever needs a defense attorney, I will recommend the best in Colorado. Wolf Law.

— John

Colleen Kelley- Fierce, brilliant, and a proven winner!

Colleen Kelley at Wolf Law is everything you could hope for in an attorney. She’s sharp, fearless in the courtroom, and always ten steps ahead. From day one, she made me feel seen, prepared, and protected. Colleen guided me through every decision with honesty and confidence, and she never stopped fighting for me. I’m forever thankful for her strength, compassion, and dedication. She didn’t just win my case; she saved my life.

Thank you, Colleen. I am forever grateful for you.

— Samantha O.

Great results. Great to work with.

I had an amazing experience working with Wolf Law, and specifically Cassandra Monahan. I was involved in a car accident and Miss Monahan not only got the ticket dismissed, but did it quickly and effectively. Moreover, she was great to work with, showing a genuine care for me and my case. I would highly recommend Wolf Law and Cassandra for anyone who needs representation with respect and results!

— Rob T.

Excellent Lawyer

I would like to share my experience and recommend Jeffrey Wolf at Wolf Law for their dedication and awesome team. I had recently contacted the Wolf Law firm with a rather challenging case and he was able to get it resolved satisfactorily and for that, thank you.

— Cece M.