If they don't have my title only my registration, how do I find out if they put a lien on it?

Check with DMV.

It sure would have to know who THEY might be. A creditor with a court judgment might be able to put a lien on your vehicle by registering the court judgment with DMV. But if you are looking for a real answer, you need to provide the volunteer attorneys with more details.

Ohio BMV has a website where you can look up the vehicle if you've got the registration number or the VIN. Liens are listed, it doesn't show the owner's name but putting the registration and the printout together gets you all the info.