Once you do, you have set the relationship dynamic and it gets harder and harder to change once they think they can use the same methods as before.

The dynamic of an auction also presents an urgency that can lead someone to an emotional FOMO (high) offer. 

have a physical or mental disability that substantially limits one or more major life activities—including, but not limited to, hearing, mobility and visual impairments; chronic alcoholism (but only if it is being addressed through a recovery program); mental illness; mental retardation; being HIV-positive, having AIDS or AIDS-Related Complex

A visual inspection done by my Handyman on 21st July 2016 and then again myself on July 25th 2016 did not show any visible signs of leaks or moisture. --- (your daughter) was with me during my walk though and we both saw no signs of mold that day.An AC technician was called on July 31st.

For instance, I am replacing a heater filter today in one of mine - when I do this I will also conduct a visual inspection of all plumbing and electrical as a courtesy to my tenant.

Again, this decision is heavily informed by the market dynamics in your market, and your own ability to afford a month or two of mortgage payments.  

I have unfortunately found This is one of those businesses where the normal dynamics of morals ethics and socioeconomic norms don’t apply .

I think you are right - the aunt's remarriage probably generated a lot of family dynamics which just came to a head.  

It's about providing a living space for someone else for a price that's determine by market dynamics and econ 101.  

There is still value to reading and listing here, just do so with a healthy skepticism and rather than try to copy what they do try to understand the reasoning and governing dynamics behind it so that you can apply a similar thought process and come up with your own way that is custom built for you and your market.