You need to apply for a UAE residence visa for a newborn baby within 120 days of his/her birth otherwise you will have to pay a AED100 fine for each day beyond the deadline. This process is the same as for a family residence visa :
Parent has a UAE residence visa.
Parent has a minimum monthly salary of Dhs.4,000 or Dhs.3,000 with accommodation allowance.
List of Mandatory Documents:
Sponsor Emirates ID (Original).
Sponsor passport & residence visa page (passport at least minimum 6 months validity).
Trade License & MOA & Partner Pages photocopy.
Registered Tenancy contract / Ejari or Title Deed photocopy.
Recent Electricity Bill if house owned by a sponsor (Not rented).
Child passport (Original), 1 passport size color photograph, white background (Studio type)
Birth Certificate (Attested).
Mother Passport with residence visa copy
Emirates ID application form.
Health Insurance Certificate or Card
Dubai Court Attested NOC letter signed by the Father (If Mother Sponsor)