Why does the marriage certificate cause most of the delay?
Because it was almost always issued somewhere else, and a foreign civil document is not usable here until it has been through its own country chain: the issuing authority, that country foreign ministry, the UAE mission there, and then the UAE Ministry of Foreign Affairs on arrival.
None of that can be started from Dubai. It is the one part of the application that depends on someone else, in another country, and it sets the real timeline.
- Issuing authority in the country of marriage
- That country foreign ministry attestation
- UAE mission in that country legalises it
- UAE Ministry of Foreign Affairs attests once it arrives here