You mention you are a property yourself but have no listings under your profile - how long have you been hosting on. airbnb .
@Leigh688 ???
Obviously the listing can't be transferred. The owner has to set the new listing up in her name and add you as the co-host.
She needs to take the previous cohost to court for lost fees and inform them and Airbnb that no further bookings will be accepted through the former cohosts listing with immediate affect.
the owner really needs a cohost who understands how Airbnb works so that her property can be managed effectively..