Every moorage has it’s own set of rules.  Most moorages don’t allow short-term or long-term rentals, subleases, etc.  And some floating home owners may not even be aware that their moorage prohibits them from renting out their own homes.  If a floating home owner rents our their home and that is against the rules, your landlord could be evicted themselves which would result in your eviction as well.  Due your own due diligence.  DO contact the moorage owner to verify that rentals allowed at the moorage.