I live in Florida. In Jan of 2013 a friend of mine arranged for me to move into a house that was undergoing foreclosure proceedings. The agreement was I would stay rent free so that the bank would know the house was occupied so they wouldn't foreclose on it while the actual owners decided what if anything to do with the property. In May 2013 I met the owners for the first time. They demanded back rent from me in the amount of $2100.00. I moved out May 28th. I never signed any financial documents before or while I was living there. Am I legally required to pay them back rent?