One reason there are few bidders at foreclosure sales is that it is next to impossible to get financing for such a property. You generally need to show up with cash and lots of it, or a line of credit with your bank upon which you can draw cashier's checks.
Pay special attention to carpet on concrete floors. Carpet can absorb moisture and serve as a place for biological pollutants to grow. Use area rugs which can be taken up and washed often. In certain climates, if carpet is to be installed over a concrete floor, it may be necessary to use a vapor barrier (plastic sheeting) over the concrete and cover that with sub-flooring (insulation covered with plywood) to prevent a moisture problem.