The easiest way to do it is through a local realtor and multiple listing service. Get your preapproval from a mortgage lender then contact a realtor in your area of interest and ask him/her to send you listings of foreclosed homes. Once a bank takes ownership of a property (REO) it is generally free of liens. This will save your heartache and money. Remember, foreclosures are in "as is condition." so make sure you have a thorough prepurchase home insection with a licensed, certified inspector.