I prob shouldnt be the first person to respond here, as I am not a guru of investing in any way shape or form. But the question that comes to mind is, WHY? Why do you want to invest in foreclosures? Do you want to flip imediatly and take a profit on a greater fool theory? Do you want to get a nice little rental and do the LL thing. Do you want to be the next Donald Trump? Diversify your extensive portfolio?
These are questions you need to know the answer for long before you start buying foreclosures. They will dictate what and how you buy/sell.