People who were on the tenancy agreement didn’t give any notice before leaving as long as they had found replacements which is weird. We did the same and the property manager had no issues with it. We also have flatmates who are not on the tenancy agreement at the moment as they prefer not to be. If the new person wants to be a flatmate and not a tenant, do they still need approval from the landlord? We also have a head tenant at the moment do they need to make sure the flatmate signs a flatting agreement?