The disclosure form stops at the dwelling
R.C. 5302.30 requires a property disclosure form on transfers of residential real property, and the section defines that term as real property improved by a building or other structure having one to four dwelling units. A bare parcel has no structure, so the form is not what the statute asks of you. The duty that survives is the ordinary one: you cannot conceal or misrepresent a condition you know about. In practice the questions a buyer asks about Ohio land are not on that form anyway — whether the parcel is in CAUV, whether the minerals were severed, whether a lease is recorded, and whether the county health district will permit a septic system on it.