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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

Highly Professional

Jeffrey Wolf handled my traffic violation in a highly professional manner, giving it the same consideration and time as a more challenging case, during a very stressful time in my life. As soon as the accident happened, he was there to offer advice and help. He went to court for me, so I would not have to take time off of work to go. His care and concern for my well-being was top-notch. Thank you so much, Jeff!

— Carol P.

Thanks!

Dear Ms Kelly you have truly been a blessing to me.When this situation took place I searched and searched for a qualified attorney to represent me in fighting for my life att after att turned me towards wolf law and I told myself I wanted the best and she clearly overachieved. After doing so much for me and my family I felt I need to compensate her for what I feel was going the extra mile and she insisted that what I’ve paid was enough. That kind of integrity and dedication to your clients says a lot about wolf law. I will always be indebted to you guys thanks for everything.

— Jared T.

Successful and Very Pleased

My name is Matt and I was ordered to register as a sex offender for 10 years. I ended up registering for 15 because the courts make it near impossible to get off the list. I tried on my own more than once and the paperwork for one county alone is enough to discourage someone, let alone four counties. I felt hopeless.

I decided to call Wolf Law and get an estimate. I ended up meeting with Colleen Kelley and she was very helpful. Told me the price, which was very reasonable, and I paid to get started. She warned me that it can take up to a year to get a court date and she was right. For me it took nine months, but when the time came, she represented me well and I finally got off the registry.

Life is so much more comfortable now and less embarrassing. The S.O. title is one of the worst badges of shame one can wear and thanks to Colleen Kelley and Wolf Law I no longer carry that weight. I’m thrilled to feel like a normal guy again.

— Matt S.

Exceptional Attorney Who Truly Cares

I cannot thank Jeffrey enough for his dedication and hard work on my case. From the very beginning, he took the time to understand every detail and worked diligently to ensure the best possible outcome. His expertise, professionalism, and clear communication made a challenging situation much easier to navigate.

What sets Jeffrey apart is his genuine care and commitment to his clients. He went above and beyond to advocate for me, and I always felt like I was in capable and trustworthy hands.

I highly recommend Jeffrey to anyone in need of legal representation. He’s not only an outstanding attorney but also a great person who truly cares about his clients’ success. I couldn’t have asked for a better advocate!

— Anonymous

Jeff Helped Me Feel Safe Again

I would highly recommend attorney Jeffrey Wolf. He consistently demonstrates knowledge and professionalism, both in and out of the courtroom. His expertise helped me to understand the legal process. As a victim of domestic violence, I looked to Mr. Wolf to assist me in obtaining a restraining order. His compassion combined with skill helped me to feel safe again.  I reached a positive outcome in my case and felt informed, confident, and cared for with Mr. Wolf in my corner.

— Karen

A Great Lawyer

Colleen was a great lawyer and made everything easily understandable.

— Juan

Outstanding Law Firm

Wolf Law was very helpful in fulfilling my personal needs. Colleen Kelley knew how to approach my case and made me feel better about my results in the bargain. I would recommend her to anyone with criminal trouble; she is an amazing lawyer.

— Levi

Colleen & Wolf Law-amazing results!

Colleen and Wolf Law did an amazing job supporting me through a very tough time! She was professional, empathetic and amazing in court. She ultimately got my case dismissed. I would highly recommend.

— Amber

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.

Would Have Been Lost Without Wolf Law

I was charged with my first DUI and was referred to Jeff by a friend of mine. He gave me a realistic expectation of what would happen and is an expert at navigating the process. Jeff is always incredibly quick to respond and is very knowledgeable. He is professional and represented me well in the courtroom. The experience of being charged with a DUI is a terrible, humiliating and challenging event – having an experienced attorney was priceless!

— Anonymous