A week of exhausting obsession has left me skeptical. 

I'd argue that you are more likely to see changes to AirBnB - stricter rules, maybe even a tax, or something like that rather than an outright death.The supply will become more and more saturated and profit margins will become slimmer in most areas.

Similar to a Prosche has better performance than an F150 unless you want to haul gravel. 

There is often more needed than an egress window.

The seller would be selling for more than an independent qualified (debatable on how qualified) party valued the property.  

@Patrick Eddy You should never offer cash for keys until you have exhausted other options.

Proof of funds letter from the bank should do it - make sure it's on letterhead and signed, rather than an email though.

[It is currently empty] Both units have a space for a small stackable washer/dryer BUT there are no dryer ducts/exhausts/vent AND in the upstairs unit the plug would need replaced [it doesn't work and the inspector doesn't know why]I don't plan to buy washer and dryer because of the other expenses we already have [new flooring, plug for downstairs stove, need downstairs appliances] putting us near the top of what we can spend right now, but if I put in the new plug and ductwork, they could potentially buy their own.This is not a high rent area [think 05, 09, 13], but what do you think the positive/negative impact on rents would be to either: a) not repairing plug or adding vent and saying, "Sorry, no washer/dryer" or b) repairing it so they have the option if THEY want to spend the money.I would love to do it just to make my units nicer, but I have to be cognizant of what I'm currently spending.

Swimming pool in San Diego is very different than an unheated outdoor swimming pool in the northern tip of Alaska, right? 

They produce a larger cash on cash than an LTR as long as you find the right market.