Tyler,
As I read the case facts and apply them to the exemption found in 317:35-19-20(5)(H)(III), my concern would be that the sibling did not reside in the same home, but rather on the same property.
(III) a sibling who has equity interest in the home and resided in the home for at least one year immediately prior to the institutionalization of the individual;
However, if we turn to 317:35-5-41.1(a)(1), I think there is room for argument that the entire property (including other buildings on the land) is included as part of the home.
(1) Home property includes all property which is adjacent to the home. Land is considered adjacent even if separated by a boundary line, street, alley, highway, or waterway.
OKDHS is typically good about providing their stance on a matter ahead of filing the Medicaid application. I would reach out to them to confirm they would apply the above exemption to your client’s case facts. I would agree the value of the home should not influence the analysis as there is no limit defined.