Answer
Based on official Jordanian legal texts
Transferring custody under Jordanian law rests on a statutory order of custodians and on a court ruling where there is dispute — not on a private agreement between the parties. Article 170 of the Personal Status Law ranks those entitled to custody: the biological mother is most entitled, then her mother, then the father's mother, then the father, then whichever relative the court sees as most fit for the child's interest.
If a condition of the custodian under Article 171 fails, the custodian's right lapses under Article 172 and custody passes to the next in order. Article 186 provides that the court assigns custody to the most suitable where considerations compete.
Custody may not be transferred by mere agreement between the parents without putting the matter to the Sharia Court and registering it judicially, because custody is a right tied to the child's interest, not to the parties' will alone.
The court remains the body that assesses whether grounds for transfer exist on the facts, and custody may return after transfer under Article 174 if the cause is removed.
This is a general explanation based on Jordanian Personal Status Law and does not replace advice from a qualified lawyer in a specific dispute.
