What is the ohio law concerning useage of property belived to be owners but actually it belongs to neighbors?

my real estate law is long forgotten. However I know there is a law that stipulates that if a property owner unknowingly uses adjacent property belived to be his it does become that persons property after a number of years.

Adverse possession must be open, notorious, exclussive, and adverse to claims of other people. In Ohio it takes 21 years. Some states require that you also pay the property taxes.

You have to go to court to gain title to the property. If you fail to do this, the real owner can come along and tell you to get off, or they could just give you permission to use the land, which takes away the adverse part of the claim.

you could get a survey done on your property. this will tell you what property is yours.