1) That's problematic. Map displacement is relative. There is no relevant point for synchronization. Each tile view (Bing, Esri, Maxtar, etc.) have different axonometric distortions and offsets. The maps are drawn differently. Someone syncs by buildings, someone by street axis. If the cadastral view of buildings is missing (or not working), it cannot be relevantly resolved.
2) The issue is elsewhere ... either the entire parking lot is drawn as one solid area OR all the outer areas are drawn separately (they didn't even have connections). Drawing part as a solid area and part as separate areas is not consistent.