@Jazmine19 . I assume your friend is the Property owner? Airbnb are unlikely to grant a transfer of a listing, (which includes all the listing details and importantly, guest reviews), but you can try by using the Host Contact Us (son will need to initiate all this via their profile).
Airbnb are also cracking down on duplicate listings so making a new listing whilst the other is active isnt permitted.
Hopefully she has stored the listing photos and texts in files, if not, take copies now including screen shots of settings in case you have to start from stratch.
Let us know how you get on as I think this issue has been raised before. Good luck.