Team up with a good Realtor who can represent your interests, rather than trying to find a house on your own. A Realtor who is a member of the Multiple Listing Service can show you any home listed for sale, no matter which office has it listed, and he or she can search for properties that are in unincorporated areas. You pick out which homes appeal to you and your Realtor will show them to you, negotiate your purchase and represent you at the closing. ALL AT NO COST TO YOU! It doesn't get any better than that!
I am such a Realtor and I would be happy to work with you. My direct telephone number is 815-231-4166.