Opening an execution file by the ex-wife for non-payment of outstanding dues

My ex-wife had opened an execution file against me last year for non-payment of outstanding dues. I am now in the process of paying off the total outstanding balance. I would like to know:

1- Once the balance is cleared, is the execution file closed forever or can be re-opened? (assuming nothing in the divorce judgment is violated).

2- Can she reopen the execution file at a later stage to financially harass me; disputing something in the execution file not being calculated correctly?

3) Can the execution judge force a settlement if she is not being cooperative?

4) What are my options if she refuses to give me her passport for canceling her visa and force me to sponsor her?

5) She is unemployed and custodian of our daughter, I am financially supporting our child. If she decides to leave Dubai claiming that she will move abroad to her family for a better future of the kid (5 years old), is it possible even if I do not agree (as I won't be able to bond with her)?

Thanks!