Buying at a Sheriff's auction

[Tayyab Chaudhry]

Quick question - looking at a property at the Sheriff's auction. How do you find out if there is a lien again the property from a mortgage company? All the liens I found were tax liens and all the searches the county office are based on the property owner's name and not the address. Does anyone have a sure bet way to do this even if it cost $ ? Don't want to bid & win a property that happens to have a mortgage lien! Thank you in advance.