Odd, as most rental car agencies attempt to collect from the person SIGNED to be the authorized driver. In this case it would be the friend. In the case of Enterrpise Rent-a-Car(significant other is a branch manager), the contract is null and void if the operator of said rental car is someone OTHER than the authorized driver, and ALL liability falls on the person who actually rented the car.
The daughter's friend would than need to pursue the actual operator of said vehicle to collect, which in this case would be the OPs daughter. OPs daughter would STILL be liable for said costs since the accident happened while she was driving. A defense of "she allowed me to drive" is NOT a defense that would hold up in court. It would just be a matter of time before she would get sued by the former friend.
There is a reason WHY car rental companies want ALL potential drivers to be listed as an "authorized driver". Furthermore, depending on WHO the rental car agency was, they will vigorously attempt to collect on said debt and will likely file a lawsuit shortly.
Moral of the story:
NEVER ALLOW SOMEONE OTHER THAN THE LISTED AUTHORIZED DRIVER TO OPERATE A RENTAL CAR!
"Alaska landlord" has been banned, now, FOUR times for providing inaccurate and false advice. ALL of AL's posts should be taken at face value and heavily verified by a competent Real Estate Attorney.
RIP JETx - Your terseness is sorely missed...