When my grandmother-in-law passes away, my father-in-law will be about 500k+ “in the hole” because he will receive nothing, and has housed them for the past 25

When my grandmother-in-law passes away, my father-in-law will be about 500k+ “in the hole” because he will receive nothing, and has housed them for the past 25 years, in addition to paying for care, GIL has dementia.