Desk research against primary sources, with the issuing authority linked where a page states an official fee, rule or deadline.
The no-pets clause is enforceable because it is a term of the contract you signed, not a matter of general law — which means the fix has to happen before signing, not after moving in with an animal and hoping it isn’t noticed. If a landlord is willing to allow a pet, get the permission itself written into the contract or a signed addendum, not just a verbal assurance from whoever showed you the unit.
Where a pet deposit is offered as the compromise, treat the AED 2,000–5,000 range as refundable security against damage, not as a fee that buys blanket permission — the landlord can still object to a specific pet, breed, or number of animals separately from the deposit question. Community-level rules sit on top of whatever your landlord agrees to, so check the master development’s own pet policy before assuming your landlord’s sign-off is the only approval you need.