But the lady who is the victim had a dream to create a retreat for addictions  as her daughter had passed away from an OD .. so it was her mission and she was far more emotionally involved with this other than just losing 10k.. to these fraud's.

Leave your emotions in the bedroom.I can often fall victim to hubris.

Then those who succeed swoop and and buy your house you love because you ran it emotionally and not like a business... people here have ‘tried’ to help but you’re one of the least receptive people I’ve seen on this forum.

I know if I am aware of the emotion, but don't let it control me that it'll pass and is usually followed by with a burst of motivation.

You can require insurance as part of the rental but that won't cover the "emotional" value of things.

You may become friendly with them overtime, but because you already had a clear conversation you can follow your system and remove any emotion from the process.  

I have mixed emotions on this one of the pain points is the pool addendum has been complained upon several times which is annoying. 

To be honest, managing my own emotions. 

Don't let emotions get involved and back out of what sounds like a great deal.     

Keep emotion out of the numbers and you will do well.Hope that helps!