https://www.vbulletin.com/forum/show...-board-license
https://www.vbulletin.com/forum/show...cense-transfer
https://www.vbulletin.com/order/license_agreement.php
*Section 1
So basically yes, have your friend submit a support ticket in the members area, providing all the information for them to recognize him as the current license owner, they will cross reference the info and get the process started - naturally they'll need the new owners information as well and no, this process i.e. another transfer cannot happen so the new owner or you for example can never re-sell the license in question.