To be eligible to vote you must be:

• A citizen of the United States
• At least 18 years old on or before the day of the general election
• A resident of Ohio for at least 30 days immediately before the election
• Not be incarcerated (in prison) for a felony conviction under the laws of the United States, this state or any other state of the United States
• Not been declared incompetent for voting purposes by a probate court
• You haven't been permanently disenfranchised for violating the election laws

Incarcerated Voters & Returning Citizens: 

In Ohio, you only lose your right to vote if you are currently incarcerated for a felony conviction. If you lost your voting rights because of a conviction, you could register to vote immediately after release. Your voting rights are not restricted by pretrial detention, misdemeanors, probation, or parole. 

Voters without traditional residence: 

Voters who do not have a fixed place of residence but are consistent or regular inhabitants of a shelter or other location may use that shelter or other location as their residence for purposes of registering to vote. They will have to vote in the precinct closest to where they receive mail. So, if the individual registers and receives mail at the shelter, they need to vote at the precinct near the shelter.