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PRO
also known as James Tanner Duncan
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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.
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Practice Areas
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State: Kentucky
Acquired: 2021
No misconduct found
State: Ohio
Acquired: 2019
No misconduct found
12 E. Warren Street, Lebanon, OH, 45036
3734 Eastern Avenue, Cincinnati, OH, 45226
121 West High Street, Oxford, OH, 45056
9078 Union Centre Blvd. Suite 350, West Chester, OH, 45069
401 Scott St., Covington, KY, 41011
4555 Lake Forest Drive Suite 650, Cincinnati, OH, 45242
3805 Edwards Road Suite 550, Cincinnati, OH, 45209
103 Client Reviews
Showing 66 - 70 of 103 reviews
Posted by anonymous | October 15, 2023 | Hired Attorney | Immigration
Excellent Service
Having to go to court for the first time was a scary and emotionally draining experience. However, with Attorney Tanner Duncan, we navigated all the obstacles and landed on a favorable decision which had no impact on our immigration application. Attorney Duncan was not only very attentive to detai...
Posted by Mitch | October 14, 2023
Excellent!
Tanner was excellent to work with. Consulted with him on some legal advice and he was very professional and answered all my questions. It’s clear he is someone that truly cares. Would recommend him to anyone!
Posted by Matthew | October 11, 2023 | Lawsuits & Disputes
Great Experience!
Tanner Duncan was very informative and helpful. I highly recommend speaking with him if you have any questions about legal processes or need legal assistance. Put my mind at ease and made me feel comfortable in a stressful situation in which I was called to court. He helped me through the entire p...
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...
"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."
Criminal defense lawyer
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
2025 - Present
Trial Attorney, Rittgers & Rittgers
2021 - 2025
Trial Attorney, Suhre & Associates, LLC
2019
JD - Juris Doctor
2014
BS - Bachelor of Science (History)
2024
2024
Criminal Defense Practice
English