I think this would only work if he is also staying at the same time as you, books all the multiple rooms himself, and is there for check-in. Then you would reimburse him for your room after the stay, and it is up to the discretion of the hotel if all rooms get Globalist benefits, which in my experience they pretty much always do (though it is not guaranteed by the terms of WOH). If he is not staying at the same property for the same dates (i.e. will not be there for check in), your two options then are 1. GOH for award stays (if you can convince him), or 2. book a Prive/FHR/Virtuoso/or other similar paid reservation where you'll get most of the same benefits of a Globalist. I believe Baha Mar even has a 4th night free offer going on for select dates with Prive right now.