This helps. It may be necessary for this family member to come to court and testify to this.
Not surprising. You need those hard copies ASAP. It is possible there are other accounts that haven't defaulted yet but hopefully not.
The creditors? Not typically unless it is a HUGE amount of debt. That is why the scammers and outright criminals do this. The merchants and the creditors are typically the ones who pay not the consumer. When it comes to "family" fraud the perpetrator relies on the family member wanting it to be kept quiet and not make waves in the family unit. The creditors will NOT drop the debt collections even with a claim of identity theft if the consumer whose identity was used is not willing to name the person and press charges. That is why family will destroy their credit then use a sibling/spouse/child identity to keep going. They know the chances a family member will press charges are slim to none.
I ended up settling with Chase last year for 10% of what I owed. But my debt was also less than yours, and (at the time) a bit older than yours. On my reports it is still listed as a charge off but status is some variation of settled.
If you have any desire to have a relationship with Chase in the future I would settle. Also, if I'm not mistaken, the utilization (I'm guessing it's over 100%) is also tanking your scores.
I pulled reports and noticed quite a few of hard inquiries from other banks around the same time this one was opened. I will make sure I file the reports.
Do they actually go after the people who do this type of stuff?