Ohio Rev. Code § 5301.24
The lien or priority of any existing valid mortgage or lien shall not be affected by reason of the fact that this state or any political subdivision thereof acquires the property on which said lien exists, unless said property is acquired by regular judicial proceedings. The state, or any board or commission of the state, may be made a party in any court of common pleas or probate court, to any foreclosure proceedings, or other proceedings to sell real estate and marshal liens, to secure an adjudication concerning any claim, mortgage, or other lien which the state has or claims on the premises involved.
Service of summons shall be made by the clerk of the court who shall, by registered mail, send service of summons and a copy of the petition to the attorney general. The answer day and other proceedings thereafter shall be the same as though a personal service had been made as of the date the return receipt is signed, and thereafter the procedure shall be the same as though a private corporation had been sued under the laws of this state.
No subsequent statute shall modify or change this section unless such statute specifically provides that it is modifying or changing this section.
R.C. §5301.24