Foreclosure Auction- Senior lien holder out of business

[Matt Pfefferlen]

Hello- I am interested in buying a 2nd position lien foreclosure at auction.   There is a really small first lien.  The first lien holder was shut down 6 years ago, but the assets were taken over by another bank.   At county records this deed of trust has not been substituted with the new bank.   Is there anything i should know?  Let's say i was going to turn around and sell it; how does the title company (or whoever responsible) or how hard do they try to find the rightful lien holder to pay?