You can contact a local realtor in that area and they can set you up with a search. Land Contracts are rare though. The seller would have to have the home paid off in order to do a land contract. Is there a reason you want a land contract over a regular purchase, it is usually much more expensive to do a land contact.
If you haven't already I would first speak with a mortgage lender to see if/what you qualify for and if not, find out if there is anything you can do to improve your score to be eligible.
Real Estate One
$10,000,000 Sold in 2012
6960 Orchard Lake #150 West Bloomfield, MI 48322 | 248-419-3160 | 248-419-0930 fax
2012 Hour Magazine Real Estate ALL STAR - Presidents Council of Excellence