I had to call my bank and the seller had to give them acct/routing number independently (surely there’s a better, electronic way these days), but they set me up for auto bill pay.

If I was your tenant I would also expect to be released out of the lease and unwilling to blackout the windows creating a cave like atmosphere or turn off my electronics however them refusing the portable ac's is odd.

I prefer electronic payment methods.

Today we don't get them in the mailbox, they just show up in bank accounts electronically.

I countersign electronically.  

Absolutely no electronic or digital parts.

Also you could get an electronic lock and make a code for your contractor/handyman, that's what I have done when I was out of state and it worked out fine.

With COVID you cannot evict for non-payment but a lease violation does not apply.Regarding Zillow screening, there are many services that do the electronic portion. 

@Amber McGill - if you keep all your documents electronically so you can email them at a moments notice (sometimes several times - always use the Subject line to tell yourself what the attachment is so you can find it easier and resend it!!)

Also, keep in mind that most CPAs do their work electronically now.