The company I worked for closed over a month ago. I'm still trying to get my last 3 pay Checks what can I do

If the amount you have not been paid is less than $3,000 you could file a lawsuit in small claims court. Or, you could file a complaint with the Ohio Department of Commerce's Wage and Hour Division. You have a claim for unpaid wages, including violations for not paying at least minimum wage since you were not paid anything. Your biggest hurdle may be the collectability of your former employer.   Ohio employment attorney www.mcoffmanlegal.com