Article 14 addresses changes to lease terms on renewal: at least 90 days before expiry, unless otherwise agreed. It should not be treated as a universal termination or eviction rule.
Article 25 separately regulates eviction grounds and requirements. Identify the purpose of the notice, the contractual terms and service method first. A date calculation alone cannot establish legal validity.
THE PRACTICAL QUESTION
Are you changing renewal terms, ending the lease or seeking eviction?
From reading to preparation.
Set out the events in sequence. Separate what the documents establish from what remains to be proved. Identify the question you want a lawyer to address. This is preparation: a superficial resemblance to a published case cannot determine the outcome of your matter.
This concerns the relevant Dubai regime; it does not automatically apply in ADGM or DIFC.