Upset Price means the lowest price at which property may be auctioned or sold at public sale. So, no upset price means there will be a minimum bid and nothing below that will be accepted. Hope this helps. Are you interested in foreclosed properties? I suggest finding the properties before the auction(pre-foreclosure) or when it becomes an REO(Real Estate Owned). At the auction you will need at least 10% down of your purchase price immediately and have so many days to close. In some states, there are redemption periods when the owner can get the home back. Let me know if you have any questions or are interested in preforeclosures. Best Wishes, Adrienne Pulu, R(S)