What do Annabel’s, Sexy Fish, Delilah and the Bird Streets Club have in common — besides serving as Leonardo DiCaprio’s natural habitat? They’re all now controlled by investment interests tied to Sheikh Tahnoon bin Zayed Al Nahyan, the Abu Dhabi royal who has been snapping up trophy properties across L.A. — and whose acquisition spree recently sparked rumors up and down the strip that the Sunset Tower Hotel and Jeff Klein’s San Vicente clubs might be next. The buying began here in September, when DIAFA, an Abu Dhabi hospitality company affiliated with Tahnoon’s sprawling IHC investment empire, acquired a majority stake in John Terzian…
