Good point DT. The compound appears to have been huge with many buildings all of which would require maintenance of some sort to be carried out by domestic staff. Of course, we never see the domestic staff except for the nanny that appears during Kay's post-divorce visit. So, it could have been any of the invisible help not to mention any of the wiseguys in the Rocco's crew. Of course, that may have been FFC's choice in order to keep us guessing.

As I've opined many times before, my money's on Manolo.