It couldn't have been. Disney likes to perpetuate the story. I'd love to get my hands on some plans in the Archives and see what that space is labeled. Roy didn't finish the apartment in New Orleans Square, so I can't imagine he'd be interested in a Magic Kingdom apartment, especially since he likely would have retired had he not passed in December of '71. Lilian and the girls, through Retlaw, still owned the apartment in Disneyland so it could be that they had at one time expressed interest in another apartment, but I don't think Retlaw owned anything at Walt Disney World.