Once the rental payments have been exchanged, and both parties have signed the Tenancy Agreement this should be registered, and the Ejari Certificate provided.
The Ejari Certificate is confirmation that the Tenancy Agreement has been registered with Dubai Land Department.
It is the "Landlords" duty to make sure this is done for the leased property. However, this duty often falls to the Tenants since the Ejari Certificate is a requirement for the Tenants to connect their DEWA account.
Owners who have property for rent can register for their Ejari account to conveniently supervise their Tenancy registration and Tenancy cancellation online however for owners of single properties they don't often complete this and allow the Tenant to organise via an external Ejari office.
Property Management Companies that have managing agreements with the Owners and become the Lessors (Landlord) of the property are responsible for registering the Tenancy Agreement and issuing the Ejari to the Tenants and therefore removing this task from the Tenants, which is the right procedure.
There can also be an issue for Ejari cancellations on the expiry of the contract. The Landlord or Lessor/Property Management Company should cancel the Ejari on expiry of the Tenancy if the property is vacated.
Ejari certificates do not automatically void with the expiry of the lease. If any Ejari is not cancelled via the online portal or the external Ejari office, it will prevent a new Tenancy Contract registration.