Do an agent search on Trulia for this area and then contact an agent. That agent can search the MLS system and update you on a daily basis with a list of foreclosed properties. Sheriff sale notification prior to a sale is possible, but requires additional research by you or your agent.
Our Multiple Listing Service now has a spot where we must designate a home as either a short sale or foreclosure listing. We can also set up an 'automatic email' system so that those listings are emailed to clients the moment they go on the market. I would suggest talking to a local agent to see whether your MLS has the same feature and then working with that agent to find the home or homes you will eventually purchase.