Short answer, ask the person who rented this to you if s/he's willing to change the reservation to your daughter's name.
If this is a rental of a Marriott Owner's Week or DC Points reservation, it's simple for the Owner/Member to call in to Owner Services and change the name on the reservation.
If this is a rental of an II exchange, the person from whom you rented would have to purchase a Guest Certificate in order to change the name on the reservation. Assuming one GC has already been purchased to place the reservation in your name, purchasing another may call II's attention to the fact that this is an exchange rental (which isn't a good thing because II prohibits rentals of their exchanges and Getaways.)