It sounds like you're talking about the trustee's sale on the courthouse steps ... if you have the high bid, you have to provide a $10,000 cashier's check that is non-refundable. The remainder of the balance, as mentioned below, has to be paid in clear funds within 24 hours.
If you can find a financing vehicle that looks like cash and gives you the funds in a 24-hour timeframe, then you can finance. Traditional mortgages won't work. The primary reason for this is financed offers can fall through and when a house is sold at a trustee's sale, the trustee wants to make sure it's really sold without any contingencies so they can clear it off the books.... more