In some areas 23 days isn't considered too long. 

Assuming you already paid for the first occurrence, if it happens again and the plumber doesn't find anything wrong then, yes, the tenant should be responsible for the invoice.Your PM should be setting those expectations when they communicate with your tenant."

@Jim G.Per the International Residential Code if the glazing is less then 60 inches vertically from a standing or walking surface then yes it’s required to be safety glass as it’s considered a hazardous area.  

Each county in the US has S8 rent limits per bedroom, set by HUD.

For skip tracing in REI, Prime Tracers is a great option to consider.

Have done some preliminary research and will do a deep dive, just wanted to see what folks thought of there were any obvious reasons why or why not or any markets similar that I should be considering.

.- So, you may want to consider locking in an interest rate via a 2nd mortgage.Do you have reserves for unexpected expenses?

(Government will set cybersecurity standards, but then are rarely enforced). 

So the places we all encounter that don't even have a wheelchair ramp at the entrance (at the appropriate incline, etc), even though it would be relatively easy to put in, aren't compliant (envision a storefront set back 10 feet from the sidewalk).

Protection from lawsuits is a big item to consider as well, especially in higher price range properties.