Ohio Rev. Code § 1313.51
Such allowance shall be made as the probate court considers just for necessary expense, extraordinary expenses, extraordinary services not required of an assignee for the benefit of creditors in the common course of his duty, and such reasonable counsel fees as were necessary for the proper administration of the assignment, whether performed by the assignee or trustee as attorney, or such other as he employs. No such further allowance, extraordinary expenses or services, or attorney fees, shall be made unless a bill of items is filed, showing such actual and necessary or extraordinary expenses and services, or attorney fees, together with the affidavit of the person incurring such expenses or performing such services, that they were done for, and were necessary to, the assignment; that the amount charged therefor is reasonable, and not more than is usually paid for such services. When such services have been performed by persons other than the assignee or trustee, the latter also must file an affidavit, stating that such services were necessary for the proper administration of the assignment, that they were performed under his direction, that the charges therefor are fair and reasonable, and that the full amount thereof has been paid to the party performing such services.
R.C. §1313.51