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Reviews & Ratings

  • 5.0/5.0

    Cayce made me feel confident about my case. Your the best, thank you so much for all you do and did.

    — Client

  • 5.0/5.0

    Hillary C. Aizenman is an awesome attorney. She always returned my calls and emails quickly. Her wages were clear from the beginning and she is very honest and has integrity. She got good results for me!

    — Client

  • 5.0/5.0

    I need an attorney really bad, so I called Polansky Law Firm not only did I win my case. But she explained the court procedure to me step-by-step I am so happy I picked this Law Firm. Thank you Cayce

    — Client

  • 5.0/5.0

    Lisa Polansky is a terrific criminal defense attorney who brings great knowledge and experience to the job as a result of handling countless, difficult cases, both in California and in Colorado. As a Colorado lawyer, I know that Lisa is hi...
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    — Peer

  • 5.0/5.0

    — Peer

Cayce Duncan entered private practice with the Polansky Law Firm in 2020 after practicing as a public defender for several years in both Denver and Colorado Springs. She is a skilled trial attorney who works diligently to obtain the best outcomes for her clients.

Cayce is a Louisiana native who came to Colorado in 2013 to attend law school at the University of Colorado at Boulder. While at CU, Cayce quickly gained courtroom experience as a practicing student lawyer in several Colorado counties. She also volunteered for outreach programs, working with high school students through the Marshall-Brennan Constitutional Literacy Project and LYRIC (“Learn Your Rights In Colorado”). In 2015, she was awarded the Dan Barash Memorial Scholarship in recognition of her dedicated work in indigent defense.

During her time as a public defender, Cayce tried dozens of cases to verdict, wrote and litigated complex legal motions, and negotiated dismissals and favorable plea deals for her clients in even the toughest of cases. Cayce has represented clients in nearly every type of criminal case, ranging from DUIs, to sex assaults, drug cases, homicides, and everything in between. She also argued before the Colorado Supreme Court in an appeal case she litigated from start to finish and ultimately won.

Cayce’s practice is focused on zealous advocacy both in and out of the courtroom. She has experience representing clients during all stages of the criminal process, including: pre-filing of charges; pre-trial negotiation and litigation; jury trials; post-conviction proceedings; probation revocations; and sealing of charges. She uses a client-centered approach to work towards the outcome that best addresses her clients’ specific needs.


University of Colorado School of Law, J.D., 2016

University of Louisiana at Lafayette, B.A., summa cum laude, Outstanding Graduate for the History Department, 2011

State Bar Admissions


Federal Bar Admissions

United States District Court of the District of Colorado and Wyoming

Professional Memberships and Associations

Colorado Criminal Defense Bar Association

National Association of Criminal Defense Lawyers

National Trial Lawyers: Top 40 Under 40 Criminal Defense Lawyers

Representative Cases

Litigated and appealed the case of Walton v. People, 2019 CO 95, from the trial court to the Colorado Supreme Court, obtaining a favorable ruling for Coloradans who wish to use medical marijuana on probation.

Obtained dismissal of drug charges in cases where clients were immune from prosecution (2018, 2019). 

Obtained dismissal of DUI and drug charges due to police violating the 4th amendment (2019).

Negotiated extremely reduced charges in a child abuse resulting in death case (2019).

Obtained dismissal of charges for clients who were deemed incompetent to proceed (2020).

Negotiated a diversion agreement for a juvenile client with immigration concerns, resulting in charges not being filed (2021). 

Successfully argued for a client to be discharged from lifetime probation supervision (2021)

Client Reviews

“Cayce made me feel confident about my case. You’re the best, thank you so much for all you do and did.” – Client (2021)

“I needed an attorney really bad, so I called Polansky Law Firm.  Not only did I win my case, but she explained the court procedure to me step-by-step I am so happy I picked this Law Firm. Thank you, Cayce.” – Client (2021)