Ohio Rev. Code § 2101.07
A special master commissioner of the probate court may administer all oaths required in the discharge of the commissioner's duties, may summon and enforce the attendance of witnesses, may compel the production of books and papers, and may grant adjournments the same as the court, and, when the court directs, the commissioner shall require the witnesses severally to subscribe the witnesses' testimony.
All process and orders issued by the commissioner shall be directed to the sheriff, shall be served, and return of the process and orders shall be made as if issued by the probate judge.
The court shall allow the commissioner those fees that are allowed to other officers for similar services, and the court shall tax those fees with the costs.
R.C. §2101.07