And you are right most money manager types won't advise you to hold RE because that is out of their control and they cannot collect fees under management. 

If I install some smart lock door that I can control entry code, then I can simply give the temp entry code to the applicant.

No control over the investment - they decide when to sell the property.

I remember a time back the folks at Bigger Pockets were promoting Josh Cantwell, Appearantly the guy has salesmanship but look up the details of what he offers and you will find he wants the best deals, a sure profit and at minimum 16% on his money, plus he gets you to do all of the leg work and contruction but he gets to select the deals and control all of the money. heheheh When Josh was just a young lad he was told that, "there is a sucker born every minute" then instructed to go out into the world and find them.

Are these related to the air conditioners, or do they control the electricity for the entire house? 

Words are weapons, contrary opinions and words cause physical and mental abuse that should be responded to with force, need authority to step in to solve problems, everyone needs protection, trust emotions over reason, avoid bad experiences at all costs, the world is black and white battle between good people and evil people (there is no middle ground), etc.

the more you could make it an emotional (unique niche place that stands out) decision and find a buyer attracted to that vs pure math, the better, I suppose.I'm thinking 'the right location' (and buyer) for this scheme is more like the "hobby second home" crowd, dedicated ski/vacation town, right on the beach, cabins, main amazing attraction right nearby, NOT any-old air bnb beachtown condo, though, overall.

I moved to KC from LA so I’m used to tenant’s rights including rent control.

My issue is that by having her accept the offer you are not in control and not dictating the outcome.  

One, is the long, drawn out method by which you get the other party “invested”; time wise as well as emotionally in concluding the deal.