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Tanner Duncan
also known as James Tanner Duncan
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About Tanner
Biography
J. Tanner Duncan is a Cincinnati-born criminal defense attorney who takes the fight head-on—and doesn’t back down. Practicing in both Ohio and Kentucky, he handles everything from life-altering felony charges to misdemeanors and traffic offenses, bringing the same aggressive, results-driven approach to every case.
From investigation through trial, Tanner is strategic, relentless, and built for high-stakes defense. He has handled cases involving murder, shootings, sex crimes, DUI/OVIs, domestic violence, and more—where the consequences can follow a client for life. He prepares every case for trial, challenges every piece of evidence, and forces the prosecution to prove its case.
Tanner thrives in the courtroom while others avoid it. He makes sure clients understand exactly what’s at risk—whether it’s jail time, permanent records, registration requirements, license suspensions, or firearm restrictions—and builds a defense designed to protect their future.
Licensed in both Ohio and Kentucky, Tanner is uniquely positioned to handle cases with cross-state consequences, including probation, parole, and license issues. His approach is simple: take control early, apply pressure, and fight relentlessly to win.
When Your Freedom or Future Is on the Line—We Fight to Win.
Practice Areas
2
Practice Areas
Criminal Defense
50%
Personal Injury
50%
Fees and Rates
Cost
Payment Methods
- Cash
- Check
- Credit Card
Awards
2026 2025 2024
...
+
2
Licenses
Licensed in Kentucky for 4 years
State: Kentucky
Acquired: 2021
No misconduct found
Licensed in Ohio for 6 years
State: Ohio
Acquired: 2019
No misconduct found
Location
Rittgers Rittgers & Nakajima
9078 Union Centre Blvd. Suite 350, West Chester, OH, 45069
rittgers.com/Tanner Duncan's Reviews
Avvo Review Score
104 Client Reviews
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Practice Areas
What Clients Mention
Showing 41 - 45 of 56 reviews | Case Results
Posted by Shane | August 25, 2023 | Hired Attorney | Criminal Defense
Great Defense Attorney
Tanner Duncan was there for me when I needed legal help. I had three charges against me and all three charges were dismissed. Thank You Tanner!
Posted by anonymous | July 28, 2023 | Hired Attorney | Criminal Defense
I'm so Thankful for Tanner!
After receiving a letter from Law Enforcement I quickly went on the internet to find a criminal lawyer. SUHRE & Associates appeared in the search and their advertising drew me in to place a call. The firm referred me to Tanner Duncan. I am so thankful for Tanner and his confidence, professional...
Posted by anonymous | April 25, 2023 | Hired Attorney | Criminal Defense
Extremely satisfied
While searching for a criminal defense lawyer we came across Mr. Duncan and his law firm. We did some research and are extremely pleased that we have chosen Mr. Duncan to defend my fiancé. He immediately responded to our inquiry and gave us a reasonable quote. He asked a lot of questions to get a ...
Posted by Hayley | April 19, 2023 | Hired Attorney | Criminal Defense
Highly recommend!
Tanner Duncan was worth every penny, no questions asked. As someone who was facing first time criminal charges I was so nervous and anxious daily that I was nauseous and couldn’t live my life in peace until I knew this was over. Tanner and his case manager guided me through every step in detail and c...
Posted by Jill | February 02, 2023 | Hired Attorney
Expungement
Tanner made this process simple for me, everything was done quickly and professionally. I can now put that part of my life behind me and for that I am extremely grateful.
Tanner Duncan's Lawyer Endorsements
"I endorse this lawyer. Tanner is smart, talented, hard-working, and kind. I appreciate his vigorous representation of his clients."
"Tanner is a fantastic criminal defense attorney. He is hardworking and dedicated to getting his clients the best outcome. He is well known in most courts in the Greater Cincinnati area and that reputation carries over to his interactions with judges and prosecutors. Would highly recommend."
"Tanner is a bright, motivated, and aggressive lawyer. He cares deeply about his clients and works tirelessly to get the best result possible. I endorse Tanner without reservation."
"Not only does Tanner have the intelligence and experience to aggressively represent his clients at the highest level, he genuinely cares about his clients and the outcome they receive. I would stand next to Mr. Duncan in any type of criminal matter with confidence."
Aaron Levinson
Criminal defense lawyer
Experience
Honors
2019
Cum Laude, Northern Kentucky University - Salmon P. Chase College of Law
2019
Dean's List, Northern Kentucky University - Salmon P. Chase College of Law
2019
Order of the Barristers, Northern Kentucky University - Salmon P. Chase College of Law
2019
Law Review - Associate Editor, Northern Kentucky University - Salmon P. Chase College of Law
2018
Dean's List, Northern Kentucky University - Salmon P. Chase College of Law
2018
Law Review - Associate Editor, Northern Kentucky University - Salmon P. Chase College of Law
2017
Dean's List, Northern Kentucky University - Salmon P. Chase College of Law
2016
Dean's List, Northern Kentucky University - Salmon P. Chase College of Law
Work Experience
2025 - Present
Trial Attorney, Rittgers & Rittgers
2021 - 2025
Trial Attorney, Suhre & Associates, LLC
Associations
Northern Kentucky Bar Association
Ohio State Bar Association
Kentucky Bar Association
Education
2019
Northern Kentucky University - Salmon P. Chase College of Law
JD - Juris Doctor
2014
University of Cincinnati
BS - Bachelor of Science (History)
Speaking Engagements
2024
The Lawyers' Club of Cincinnati
FBI NICS Appeals
2024
Legal Methods - Guest Speaker
Criminal Defense Practice
Languages
English