Both the renter and the owner are required to be present when the RV is returned, as the mandatory return inspection must be completed by both parties.
As the RV owner, if you agree to have the RV returned by the renter without being present, this is done at your own risk. If damages are discovered by the owner once the renter is no longer present, it may be difficult to prove whether it occurred before or after the RV was returned by the renter.