My mother recently bought a condo from an individual in Florida. A few weeks later when my mother arrived there, the previous owner called to say she found some more keys. She seemed extremely excited to comeover and bring them. When the previous owner arrived, she asked my mother whether we had cleaned and found anything. My mother said no. The previous owner asked if she could take a look, she might have forgotten something. The previous owner proceeded to enter the bedroom and remove an envelope from the top shelf in the closet, telling my mother it was just a bunch of papers. My mother said no its money, it was obvious. What I am getting at is, if we bought the condo and its "contents" is that envelope and anything inside legally ours? Im not asking morally, just legally? Thanks