By assuming this is their only site, anyone'd be walking into a world of risk that isn't worth it. "Squatting" on multiple vacant bldgs is merely the uninformed perspective of the maint. crew that had no idea what agreements'd been in place for however long before they stumbled across them - nor any reason to think different, let's be honest. The chance that this is not an isolated, unconnected series of sites is non-zero, and the risk to the associated organization is not something I'd wish on pretty much anyone. Be smart. Don't underestimate the situation — especially in that industry. 🤌🏼