Knowing what is owed on a property is not a matter for public consumption;
would you want your debts made public.
You can find the amount of the initial loan; but who know what has happened since them.
If it is an REO and you want some leverage against the bank; forget it; the bank has their own way of accounting in a foreclosure. If you let them know that you knew; you might just anger them.
As far as the loans/liens are concerned:
If it is an REO, and has gone thru Foreclosure, then it will only have one; the others will have to have been satisfied.
Uf it is a normal sale; you can either have your realtors ask the Seller, or you have the Title Company do a Title search, (which will have to be done eventually anyway.)
What you should be concerned with now, is the Market Value of the porperty; which your Realtor can determine by doing a CMA.
You do have a Realtor in your corner, right?