Free Consultation
$0 first 30 minutes
PRO
also known as James Tanner Duncan
Virtual Consultation Available
Free Consultation
After receiving his bachelor’s degree from the University of Cincinnati, Attorney Tanner Duncan went on to attend the Northern Kentucky University Salmon P. Chase College of Law. Tanner graduated from law school cum laude in 2019, earning his juris doctorate. He then began his legal career in the personal injury and criminal law fields in Warren County, Ohio. Tanner went on to obtain his law license in the State of Kentucky, where he continued working as a personal injury and criminal defense attorney. He would subsequently shift his practice to focus solely on criminal defense in 2021 and has been taking high level cases on both the Ohio and Kentucky side of the river since 2021. In 2025 he joined the powerhouse law firm Rittgers Rittgers & Nakajima where he continues to zealously fight for his clients.
One of Tanner’s favorite quotes was uttered by Mark Twain and provides insight into his personal value system: “Whenever you find yourself on the side of the majority, it is time to pause and reflect.” Tanner values faith, diligence, honesty, and adaptability highly; these values reflect the excellent legal representation he provides. Attorney Tanner Duncan aims to get to know each one of his clients on a personal level so that he can provide more meaningful and effective legal representation. If you require a Cincinnati criminal defense attorney, look no further than Tanner.
Tanner enjoys outdoor activities such as hiking, kayaking, snowboarding and boating in his spare time. He also enjoys spending significant time with his family. Cincinnati sports are also high on Tanner’s list of interests. If you are in need of criminal defense representation, Tanner and the rest of the legal team at Rittgers Rittgers & Nakajima are here. We provide a free consultation, so please feel free to reach out today.
4
Practice Areas
Free Consultation
$0 first 30 minutes
State: Kentucky
Acquired: 2021
No misconduct found
State: Ohio
Acquired: 2019
No misconduct found
Fax
Mobile
12 E. Warren Street, Lebanon, OH, 45036
rittgers.com/
Other places you can find Tanner online.
Showing 1 - 5 of 94 client reviews from Avvo
Posted by Bryan | January 5, 2026 | Hired Attorney
I hired Tanner Duncan to represent me in a DUI case, and I had a very positive experience. From the beginning, he was professional, straightforward about the process and possible outcomes. He consistently communicated clearly and made sure I understood each step of my case. I appreciated how responsi...
Posted by Douglas | December 29, 2025 | Hired Attorney
Tanner helped my family tremendously. His professionalism, thoroughness and responsiveness were top notch. We undoubtedly made the correct decision and couldn’t recommend Tanner more.
Posted by Philomena | December 17, 2025 | Hired Attorney
Really professional,takes time to explain all details,good communication skills.
Posted by Brooke | December 12, 2025 | Hired Attorney
Tanner went above and beyond for us. He was very professional, punctual, and informative during our whole process. I will recommend him to any and everyone that needs counsel!
Posted by anonymous | October 28, 2025 | Hired Attorney
Tanner is a truly compassionate professional who is dedicated to achieving the best possible outcome for his clients.
"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