I just spent more time reading this post than I ever did thinking about bites....they just acknowledge someone agrees with you. or you made a valid point.

I had a "emotional support cat"  in one unit which ultimately (after moving out for unrelated reasons) was acknowledged by the tenant's guarantor as completely unlicensed/trained/anything.   

And there's nothing 'wrong' with that, but it's worth acknowledging. 

The images/video records to a memory card so you have to go to the unit, take it down, and review the pictures manually.In either case, I would notify the tenants - in writing - that you are installing the cameras and make them acknowledge your notice so they can't complain later.

Require them to acknowledge it so there's no confusion.Is there a termination fee?

The state of IL is in a dire tax/pension crisis and both Gov candidates acknowledge that property taxes are going to be going up as one of the best ways to try and make up the debt load the state has. 

They acknowledged that I had a perfect pymt record on other properties but it still had to be cleared by their “investigations unit”.  2 weeks later they finally turned it on.You might consider looking for properties that are just cosmetically inferior......e g lots of big flowery wallpaper, pink tiles in the bathroom, etc.  

Let’s face it, conditions are unlikely to get better than where we are today and underwriting needs to acknowledge that and build in adverse cycles.  

You have proof that they have vacated the property (save that text)...in fact, respond to the text with something like, "I am acknowledging that you have vacated the property as of X date, and have surrendered the keys.

As a PM I return calls/emails as quickly as possible or at least say "I'm really busy at the moment I'll call in X time".In any event, acknowledging the contact at a minimum.