@Toubi0 Airbnb does not ask for proof of ownership nor documentation from a lease tenant by the homeowner in order to list a property. In fact, some homeowners who have found out that their tenant has listed the place on Airbnb in contravention of the lease agreement of no subletting have had an impossible time trying to get Airbnb to take the listing down and can only solve the issue by evicting the tenant, which can be a lengthy process.
So your issue won't be addressed by Airbnb- it's something you would have to deal with privately through your lawyer.