How to obtain my ex landlord passport copy and...

Please kindly note that, according to the data received in your inquiry and according to the federal law, if the passport is held by the employer or any government agency and you wish to obtain a copy of it, the sponsor can be reviewed with a statement of the reasons for his request. A copy of the passport with a statement of the reasons and purposes of the passport copy. This is in general

Kindly, could you clarify your question in details so we could help you legally better with pleasure.

We would like to inform you that according to the UAE Rent Law, the lessee or renter must handed the place as he took it if he want to get the insurance mount at the end of the rent contract and has to clarify that the owner must pay the insurance full if there is nothing needs to be maintained during the rent period.
Moreover, according to the Rent Dispute Committee, the owner can take from the renter an insurance amount for the maintenance and has to refund that amount full if there is no need and if the status of the place is as it was before renting. Also, the law clarified that the repair shall be by cooperation between the owner and the renter according to the kind of repair.
Therefore, as long as the place where handed as it was and in good condition and the rent contract end and don't want to renew the contract with notifying the owner about the maintenance works from the insurance amount then you don't have any legal responsibility on you, and your status is legal.