Ohio Rev. Code Ann. § 5731.43

Section 5731.43. The attorney general, when requested by the tax commissioner, shall represent the state, the tax commissioner, and the county auditor in any proceedings under Chapter 5731. of the Revised Code. The tax commissioner, with the consent of the attorney general, may designate any attorney assigned to or employed by the estate tax division of the Department of Taxation to represent the tax commissioner, and no additional compensation shall be paid to any attorney so designated for services performed in such capacity.