We have been quite successful hosting Murder Mystery Weekends as well.

You should vet the company to ensure they have the resources to pay the rent.You ALWAYS do background checks on the people living in your property because if you let in an axe murderer and they harm someone, you are likely to get sued.Whether or not you charge an application fee is up to you.  

Mystery and fear intermingle into the minds of investors when it comes to properties that are distressed.

You find this out by talking to people, speaking with past residents, people in the industry, or mystery shopping the property.Using technology to pull in data so you don't have to manually type it in, is helpful, but other than that, I would not trust automation. 

The property can be unappealing in some way shape or form, old, derogated, who knows maybe there was a murder there several years ago and people can look up that information online?

Why they need to inspect the interior when the exterior is pristine remains a mystery, but we don’t make the rules.

Yes, he is her “boyfriend” who allegedly was in jail for attempted murder and it er charges .

lol, bro, he's been involved in an attempted murder twice in the last 6 months.

And if end buyer can't get a qualified loan anywhere, but will get owner financed purchase from you for 80K then there is no mystery there. 

i also had HVAC mystery issues in my first duplex when we house hacked it.Regarding the Daikin Mini Split - I have one in the 3rd story of my current home and it seems to work great for us.