You can contact an buyers agent that understand the process and access to the information or check the public records in the court house or contact a service like realt trac or foreclosure.com. It depends on what you want and what you will do with the information when you receive it.
If you are going to purchase a pre-foreclosure property and do not know the process, you need to get a buyers agent that knows the process. I have seen people make big mistakes and for no reason because the buyers agent will not cost you anything. The seller will be paying the cost for you being educated and assisted.
Certified Distressed Property Expert