Unless otherwise provided in the close corporation agreement, the invalidity of a provision pursuant to this division does not affect the validity of the remainder of the agreement.
Any certificate that is required to be filed with the secretary of state with respect to the authorization or taking of any action pursuant to a close corporation agreement that would not be permitted under this chapter in the absence of division (C) of this section shall recite the existence of a close corporation agreement that authorizes the action.
Any officer of the corporation who learns of the occurrence of any event causing the invalidity of the close corporation agreement shall immediately give written notice of the invalidity to all of the shareholders.
If a close corporation agreement set forth in the articles of the corporation is terminated or becomes invalid, the officers of the corporation shall promptly sign and file the certificate of amendment prescribed by section 1701.73 of the Revised Code, setting forth the reason for the termination or invalidity and deleting the close corporation agreement from the articles. If the officers fail to execute and file the certificate within thirty days after the occurrence of the event giving rise to the termination or invalidity, the certificate may be signed and filed by any shareholder and shall set forth a statement that the person signing the certificate is a shareholder and is filing the certificate because of the failure of the officers to do so.
R.C. § 1701.591