Thank you John for being the most direct in answering my question.  I understand what you're saying , and of course any Grantor wishes to give as "little warranty as possible" but how are the banks giving out loans on properties that are being conveyed by Limited Warranty covenants only?!
I've seen this done by banks many times over the past 13 years but I am seeing it occur 100-fold this past year. I was assuming that the banks were giving Limited Warranty deeds when they acquired the property in foreclosure and that would protect them if anything was missed in the foreclosure action but shouldn't the people buying the properties from the banks and getting loans on them have more protection?