Arlo is cell based.

Two bedrooms in that size especially with a basement which probably has lower ceilings and not a lot of windows will look more like a prison cell/

If you have an iPhone, there is a way to make your own "Contact Card" in the Contacts app: I normally add my cell, email, and company there; list your "Company" as "Investor".

But is it still possible to put a sub meter like device on individual units just so I know who may be running a bitcoin operation so I can send notices to the right units in that event?

The definition of Appliance has been expanded to include any device provided to the tenant to cool the home, to include permanent or portable air conditioning units, swamp coolers etc. 

Ring cameras, Minut device, a good cleaner, and smartlock activity log on the app, is your best friend for remote managing.

I now want to transfer the property into my Series LLC but I don't know if I need a separate EIN for my first property series (cell).  

You will need to open the files on a computer and, if so desired, transfer that information to your device, either using your device cable or by emailing yourself the unzipped file and opening the file on your device. 

It’s all integrated and easy to manage from PC or mobile device.

Here is quoted VRBO policy:"Vrbo, another vacation rental company, states that it does not allow any form of surveillance device inside a property, with the exception of smart devices that are allowed "as long as you have been informed of their presence and given the option to deactivate them."