You can always subscribe to a website called Realtytrac.com. They are pretty good and tracking preforeclosure and foreclosure homes. The other option is as you are asking is to find a local realtor with experience in that market. I am in Guilford County NC and we have some foreclosures but are not flooded with them either. If you really want to pursue this you are better off having a licensed agent helping you. If you like I can refer you to a top agent in that area to help you in this search through our international network. If you would like that just drop me a line otherwise either interview some local agents and find one that fits what you want or you can start searching online now.
Coldwell Banker Triad