What are the rights of the renter when their home has went to auction

I live in a condo with three floors which I have been a tenant and renting for 5 years from an owner that is a complete liar. I live in North Miami Beach, Florida. I noticed that the apartment was going on foreclosure because we received some of the owner’s mail. Then recently I noticed that a letter came to my home saying that my home would be going up for auction on October 7, 2010. Now the president of the condo building is saying that my owner lost the house and now I will have to pay him because the apartment owns it now. The owner of the apartment that I have been renting from for 5 years is acting like he doesn't know what I'm talking about when I brought all this to his attention. Instead he is still trying to get money from me. I want to know what are my rights and where can I get proof of all of this information. How do I contact the sheriff? How long do I have in the apartment? Please help with any information you may know of.
Thanks in advance!

You can search the Dade County Public Records.
http://www2.miami-dadeclerk.com/public-records/

Or call the Dade County Clerks office and ask them who you're supposed to pay.
http://www.miami-dadeclerk.com/contact.asp

I wouldn't pay either one of them then see which one sues you. It would be a crime for the one that doesn't own it to try to collect from you.