People stop building in flood zone, stop rebuilding in hillsides with brush and timber6. as you say investors give up and dump properties making prices of real estate decrease but hold costs only for the rich. 

One multi-family using salt isn't going change much.Let the tenants choose and purchase their own gear, whether it be shovels, powered brushes, single- or dual-stage snow throwers, ...

I did all of the obvious repairs needed and at every opportunity, I chose to use premium material (quarts sparkling white counters, Sterling Oak plank flooring, 6in baseboards, hands-free brushed nickel pull-down faucets).

I've gotten one bad review over this and had another guest that thankfully still left a good review, but let me know in private comments that one of the guests in their party was extremely angry over it.I've brought this up to StayFi several times and they just brushed it off. 

I’m painting bedroom doors on a property, rookie DIY, and after painting, the paint is peeling with the slightest brushing of a tool or finger nail.

Don’t throw good money At bad money .. brush it off as a loss

Having been out of the game for a couple years (scared and confused) I need to brush up on some up to date strategy.I see a lot of people here discussing A to B and B to C closings, transactional funding, etc....What if I have the cash to close?

No, each property is different and rates very a lot due to zip code, age, construction type, brush zone, etc.

Registration or other permit requirements, if they exist, are normally specific to each local & no broad brush requirement can be applied other than hotel taxes.

You need a stiff floor brush and dilute your bleach with water and scrub.