Our target was $1.4M, we listed for $1.57M, we sold it in 16 days for $1.52M.

Gave that list to her property manager in March this year & he just smirk at me.

Some of these other options you listed are decisions based on how you want to live and how you feel about having strangers in your primary house and aren't something we can tell you to do. 

(not the $470k from the past...what you expect on an annual basis going forward)The sum of those three annual items is the numerator in ROE (the "Return" portion).Divide that by your Equity which = $469 ($850 property value - $381k current debt)

The YouTube gurus make it sound like it’s as easy as picking up a property over the counter and selling it on Craigs List.

Hey guys,I would appreciate it if someone could take a look at my Airbnb listing and offer some pointers.

https://www.furnishedfinder.com/list-your-property?

They'll be listing in about 3 or 4 months.

I've spent anywhere from $30 to $250 and it all depended on the things listed above. 

Most of the PM listed on Biggerpockets are for LTR since the site promotes self-managing STR.