Ohio Revised Code Title XVII. Corporations Partnerships § 1707.41

(A) In addition to the other liabilities imposed by law, any person that, by a written or printed circular, prospectus, or advertisement, offers any security for sale, or receives the profits accruing from such sale, is liable, to any person that purchased the security relying on the circular, prospectus, or advertisement, for the loss or damage sustained by the relying person by reason of the falsity of any material statement contained therein or for the omission of material facts, unless the offeror or person that receives the profits establishes that the offeror or person had no knowledge of the publication prior to the transaction complained of, or had just and reasonable grounds to believe the statement to be true or the omitted facts to be not material.

(C) For purposes of this section, lack of reasonable diligence in ascertaining the fact of a publication or the falsity of any statement contained in it or of the omission of a material fact shall be deemed knowledge of the publication and of the falsity of any untrue statement in it or of the omission of material facts.

(D) No action brought against any director, based upon the liability imposed by this section, shall be brought unless it is brought within two years after the plaintiff knew, or had reason to know, of the facts by reason of which the actions of the person or the director were unlawful, or within five years after the purchase of the securities, whichever is the shorter period, or, in the case of an action to enforce a right of contribution under this section, the action is brought within two years after the payment of the judgment for which contribution is sought.