If you see something statically pointing toward a crash let me know but I’m not going to listen to the article on Twitter or the news that’s just trying to steal my attention and spread fear in order to boost their ratings.

You cover the floor, spray the solution on with a pump-up pressure sprayer, brush with a soft siding brush on a threaded handle, and wipe down multiple times with a sponge mop and a lot of water.

They'll burrow in the roots of brush, trees, junipers, etc.

It would the same brushed satin nickel finish.

If a unit is empty for a bit and a new tenant is not lined up, I usually buy a dollar store toilet brush and plunger if I find a unit doesn't have one when turned over.

Get two bulldozers with a heavy cable and large steel ball in the middle and drag the brush. 

Figure replacing pumps at 6 years ($600-1200 ea) and brushes yearly.

I'd be brushing up on the eviction process.

I think the 2% rule paints with waaaaayyyyyyy too broad a brush.

You can't spray an entire unit, and then try to touch up with a brush. 2 entirely different textures - the paint is likely matching, but you see different textures and the light reflects differently.