Ohio Rev. Code § 5121.46: Conditions for exemption of liable relatives.

The department of mental health and addiction services shall not charge a liable relative under sections 5121.33 and 5121.35 of the Revised Code who has done either of the following:

(A) Paid all amounts charged by the department for the care and treatment of a particular patient for fifteen consecutive years;

(B) Paid amounts charged by the department for the care and treatment of more than one patient for a total of fifteen consecutive years.