I'd be happy to talk w/you on the phone and maybe meet some time for coffee. 

I did not know of this time log requirement for STRs, so as a newbie I am going back through emails, texts, phone logs, invoices, etc. to determine how much time I spent on everything.  

It’s hard to find good help, so I am hoping to screen better next time.

Its a scare tactic and she is trying to bully you into letting her get away with this BS.You need to screen WAY better and/or hir e PM for future tenants. 

Transitions are also complicated and the screening and rental process can be burdensome.

"Cash flow," he says, "with no phone calls from tenants!"

We went to Delta Build's office on Monday, left our phone number and was told someone woukd get back to us within 2 days. 4 days have passed and no one has called us back.

Screening: Includes income verification and rental history verification.

Taking phone calls or making cold calls?

Zach also explained this to me on the phone so I knew it wasn't a sales pitch when my tenant did it.