James Tanner Duncan

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 intensity to every case.

From the moment a client is under investigation through trial, Tanner is aggressive, strategic, and focused on winning. He has defended cases involving murder, shootings, sex crimes, DUI/OVIs, domestic violence, and more—cases where the stakes couldn’t be higher and the margin for error is zero.

While others avoid the courtroom, Tanner thrives in it. He prepares every case for trial, applies pressure where it counts, and forces the prosecution to prove every element. He also makes sure clients understand exactly what’s on the line—whether it’s jail time, lifelong registration requirements, permanent records, license suspensions, or firearm restrictions.

Licensed in both Ohio and Kentucky, Tanner is uniquely positioned to handle cases that cross state lines, including complex issues involving probation, parole, and multi-state consequences. His approach is simple: take control early, fight relentlessly, and protect his clients’ future at all costs.