Selling adjacent property to qualify for Medicare long-term care.

My father (86 and a veteran) was taken off hospice last week. I am told that in a few weeks, they hope to transition him to a nursing home. His income and checking are low enough to qualify for Medicaid. However, he owns two empty lots adjacent to his home that I am told must be sold. We had them for sale (at tax assessed value) for a year. No one was interested. If we auction, they will probably sell for much less that "market value". I am told that is a problem. What can I do to help him?