Furthermore I would recommend you to read Corpse Party - Blood Covered (or even better to play the game) for a real haunted location because most of the manga mentioned above do not really take place in one. Hope I could help.
American Ghost Jack Yuureitou (not really a male/female lead, it's rather complicated. But it is a romance). And you might try the shoujo version of Shinrei Tantei Yakumo, which is completed but rather light on the romance.