Here is what I would do.
Get one of the two attorneys you have spoken with to send HER attorney a letter.
In this letter, tell them that you wish the name of the attorney and of the insurance carrier along with the policy number and accident number. Also ask for a copy of the police report.
Tell them that you are going to include the insurance company in any negotiations as to your involvement.
This is bordering on fraud. That attorney knows you don't owe anything but is insisting you pay.
Bringing the insurance company into the mix will do one of two things.
One, you will never hear another word about this....or two, the insurance company will insist upon reimbursement of that money from your ex and then tell your ex to chase you for the rest.

