Ohio Rev. Code Ann. § 5121.06 – Persons liable for support

(A) The following persons other than the resident or the resident's estate are liable relatives and all the following persons are jointly and severally liable for the support of a resident in an institution under the control of the department of developmental disabilities:
1. (1) The resident or the resident's estate;
2. (2) The resident's spouse;
3. (3) The father or mother, or both, of a minor resident under the age of eighteen years.
(B) The department shall determine, pursuant to section 5121.04 of the Revised Code, the amount to be charged each resident and liable relative in the order named in this section, but shall not collect from any person more than one hundred per cent of the applicable cost.
(C) An action to collect delinquent payments or to enforce agreements in default may be brought against any or all persons named in this section. To the extent parents of adult residents, pursuant to the language of this section previously in force, incurred charges for the support of such residents between the eighteenth birthday of such resident and July 1, 1975, their liability for such period may be canceled, compromised, or settled as provided in section 5121.07 of the Revised Code.
(D) Irrespective of the number of residents whose care might be chargeable against a liable relative, no individual liable relative nor group of liable relatives who are members of the same family unit shall be charged with the support of more than one resident during the same period of time, and different periods of time for which such liable relative has paid the charges for such different residents' care and support shall be added together for the purpose of completing the maximum fifteen-year period of liability of such liable relative under division (B)(6) of section 5121.04 of the Revised Code.