How can I reach a settlement with the bank for a mortgage of a jointly owned property?

I have a jointly owned property in Abu Dhabi. The mortgage was defaulted on as I had to leave the property with my children following an assault by my ex-husband. He left the country in 2018 and never paid the mortgage.

As I was in the country, the bank filed a criminal case against me, and I was sentenced to 3 years. I won the appeal against the bank and then filed another criminal case a few months later in Dubai. Again, I won and paid a fine.

In 2019, the bank started a civil case against me and my ex-husband to have the property repossessed. However, at the time of the purchase of the property, there were no Title Deeds, the bank requires this.

I cannot give them the Title Deeds to sell the property and pay back the amount owed to them as my ex-husband refuses to provide a POA. The bank has filed another criminal case against me only for our jointly owned property.

I wish to resolve this and pay off the bank and receive any money left from the sale. How can I resolve this issue of the Title Deeds?