Check & upate your voter registration at the corresponding link.
The last day to update your voter registration for the 2018 general election is October 9.
Cuyahoga County: https://boe.cuyahogacounty.us/en-US/voter-registration.aspx
Lake County: https://www.lakecountyohio.gov/lakeelections/Voter-Registration-Information
Lorain County: https://lorain.ohioboe.com/apps/vtrlookup.aspx
Medina County: https://www.medinacountyelections.org/am-i-registered-to-vote
Summit County: https://www.summitcountyboe.com/voters/voter-search/