Ohio Rev. Code § 2109.06
The probate court that appoints a fiduciary may, on its own motion or on the application of any interested party, and after notice to the fiduciary, require a new bond or sureties or an additional bond or sureties whenever, in the opinion of the court, the interests of the trust demand it.
Immediately upon the filing of the inventory by a fiduciary, the court shall determine whether the amount of the bond of the fiduciary is sufficient and shall require new or additional bond if in the opinion of the court the interests of the trust demand it.
When a new bond is required as provided in this section, the sureties in the prior bond shall nevertheless be liable for all breaches of the conditions set forth in the bond that are committed before the new bond is approved by the court.
The court shall remove a fiduciary who fails within the time fixed by the court to furnish new or additional bond or sureties, and the court shall appoint a successor fiduciary.
R.C. § 2109.06