@Manuela465 Airbnb listings are not transferrable. All the reviews, etc, go with the host, not the property. New owners have to set up a new listing under their own account, start with zero reviews (unless you already own other Airbnb properties, in that case, the reviews you have already gotten would appear on your profile page for all your properties) and changing property owners without contacting already booked guests to give them the option to cancel (guests look at reviews, and the reviews are very much based on the host , how he/she deals with their guest, how they keep the property, etc) would be very bad business practice and could make the guests mad and lead to bad reviews and demands for refunds.
So if you are looking for a property to Airbnb, it really doesn't matter or apply that it has been used as an Airbnb before, except for the fact that it would already be furnished and set up for guests.