Ohio Revised Code Title LVIII. Trusts § 5814.08

(A) The minor, if the minor has attained the age of fourteen years, or the legal representative of the minor, a member of the minor's family who is eighteen years of age or older, or a donor or transferor or the donor's or transferor's legal representative may petition the court for an accounting by the custodian or the custodian's legal representative. A successor custodian may petition the court for an accounting by the custodian that the successor custodian succeeded.

(B) The court, in a proceeding under sections 5814.01 to 5814.10 of the Revised Code, or otherwise, may require or permit the custodian or the custodian's legal representative to account and, if the custodian is removed, shall so require and order delivery of all custodial property to the successor custodian and the execution of all instruments required for the transfer of the custodial property.