Dropbox - Cloud storage, ease of access to business files from anywhere, any device.

@Kimberly Kesterke This is 2020 where everyone uses a cell phone to call for service.

@Gary R UrenIt’s a simple device and very inexpensive.  

I suppose the other members won't need a business phone number becuase I'll be responsible for management, but I could see the situation arising where I forward the number to a partners phone if I need to leave town for a couples days, or allow them to "log-in" to the phone service from their device.

Suddenly, their broken/lost/no service cell phone comes back to life ;)

Remember to have your cell phone handy when he shows up, alone, and have your friend there to take pictures as you shove and swear at him, who does not have a witness, in order to provoke your landlord into reacting violently against you in any way that touches your person so you can call the Police and have him arrested for Battery.

Posting on mobile device is harder than I thought, sorry for the messy above post.I screen roommates harder than ordinary tenants.

You can get a google voice number that you can point to an office line or your cell phone.

@Nidal Daraiseh  If you happen to put one of your STRs in Gatlinburg, it would be really neat to have a fully functional Gatlin gun as an amusement device in the back yard. 

@Matt MulvihillYes, that's certainly part of the reason laws were originally enacted around ATDS's and calling/texting cell phones.