What will be the outcome if I am a tenant at a duplex that might be becoming foreclosed?

I am signed on a 1 year lease which ends March 1, 2008. I came home the other day and there was a note on my door saying the property will be up for auction on February 11, 2008. I called the phone number on the paper and they said the owner has not paid the mortgage since March 1, 2007 (ironically, that was the day I moved in). Which is more legally binding, a lease or a mortgage? Will I at least get to live there until March? What happens once the duplex is purchased by someone else? I called the landlord and he ured me that it would be ok, and that "this is a legal matter between me and the previous owner.". I feel he is lying to me. What do I do?!?!