Hi and welcome,
I assume that your parents' names are both on the deeds and therefore there is right of survivorship. You cannot do anything at this time affirmatively to protect the house and land. IF such assets are owned by the Medicaid recipient, as a rule, Medicaid can place a lien on them for the amounts it paid/is paying for nursing care.
However, in your case, events may prevent this. If mom dies first, dad will become the sole owner due to the survivorship and Medicaid cannot go after the property. If dad dies first, your mom is sole owner and the lien process will apply.
Rich
Lawyer (JD)
NYC Trial Atty. 30 yrs.- pers. inj., contracts, real estate, criminal, estates, matrimonial.