Ohio Rev. Code § 1334.11: Defenses.

Notwithstanding section 1303.35 of the Revised Code, a purchaser who executes an agreement selling or leasing to him a business opportunity plan or a note in connection with such an agreement may assert as a defense to a claim by a holder in due course, as defined in section 1303.32 of the Revised Code, any defense that the purchaser may assert against the seller of the business opportunity plan.