As many foreigners, which are buying or renting houses/flats in Spain already do know, we are cheated on a regular basis. I was rented an expensive apartment with a big trastero to store my old stuff. When visiting the apartment the trastero was empty, when arriving to live there, it was full of the stuff of the owner! The numerous complaints on the forum, and on others, are a proof that this kind of behavior is not unusual in this country.
I propose to make a database with all owners and rental agencies, which did cheat their clients. If this suggestion is of interest to some of you please let me know. I am ready to contribute my time and my knowledge of four different languages to this cause.