Ohio Rev. Code § 2129.28: Trustee's bond.

If a trustee is named in a foreign will that creates a trust relating to real property situated in this state, the trustee may execute the trust upon giving bond to the state in the sum and with the sureties that the probate court of the county in which the real property or a part of the real property is situated approves, conditioned to discharge with fidelity the trust reposed in the trustee. If the testator in the will naming the trustee orders or requests that bond not be given by the trustee, bond shall not be required, unless for sufficient cause the court requires it.