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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
106 Client Reviews
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What Clients Mention
Showing 26 - 30 of 106 reviews
Posted by anonymous | June 22, 2025 | Hired Attorney
Excellent communicator
Tanner did a fantastic job communicating with me and ensuring I completely understood the process of what was going to be happening. He was clear and detailed with his communication.
Posted by Mik | May 01, 2025 | Hired Attorney
My lawyer for the rest of my life!!
Tanner Duncan helped me from Day 1 of my case he helped me so much with everything! I was absolutely pleased with how he communicated with me through everything I had to go through with my case. He will always be recommended by me for the rest of my life. Tanner will fight for you just give him the c...
Posted by Treyshawn | April 03, 2025 | Hired Attorney
Tanner will give you the best defense
Great work ethic professional and clear and concise approach to my needs during my case honest and transparent with the me and my options definitely would recommend to anyone in need of counsel.
Posted by anonymous | April 02, 2025 | Hired Attorney
Hiring Tanner was the best decision I could have made!
Wow, Tanner sets THE extremely high new standard for all attorney interactions I might have in the future. He is incredibly communicative, thorough, and professional. He answered or called back right away any time I called with questions, and gave me balanced and accurate advice. I felt both confide...
Posted by anonymous | April 01, 2025 | Hired Attorney
Fantastic Lawyer
Mr Duncan answered my call later in the evening hours. He quickly assessed my situation, and was very straightforward and respectful. He organized a plan, and executed in a timely manner. He walked me through the process and even set reminders for me to comply with every step in my legal process. Thi...
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