Ok. First, the hotels would have to have the medical equipment. Secondly, you need the medical staff to treat the pts. You don't just dump a sick pt into a bed.
I know this is Alyssa Milano were talking about here but it seems too many speak out on issues they no nothing about. She doesn't even know much about acting
The idea of commandeering hotels is valid - An excellent ad hoc facility... It would be better to get the infected out of the hospitals and into actual quarantine, rather than infecting hospitals which are needed for many other things. And hotels have the bones, easily converted for the task.
The problem with Tumpy's properties is access. Too hard to get to, too hard to contain.
SO while the idea is correct, Tump's offerings would not be suitable.
Better a free standing Holiday Inn, as an example, with typical space and parking that can be fenced off and controlled.