Rental Property Exemption?

In your book on page 52 you mention that Non-Business rental property is excluded up to $6000 but on page 97 it mentions an unlimited exclusion for Income Producing property with the example of a house that is rented out. I am not sure what the difference is between these two, can you please explain?

Also, what would be the case of a property and building that is rented out to some else’s business? In applying for Medicaid would that be exempt only to $6000 or would it be an unlimited exemption?