I have worked with companies that specifically are certified to remove mold and I was told not to disturb it or mold spores could get on your clothes and travel throughout the house.

If you adhere to these simple rules, you should be able to prudently use leverage without losing sleep, and will reap the benefits of buying more properties with the same amount of capital (more diversification to stabilize portfolio's overall operating performance, huge tax benefits).The fact is that in most areas real estate is still inexpensive by historical measures, based on ratios for rent-vs-own and buy-vs-build.

Don’t sleep on a “back on market” deal!

My tenant emailed an ESA letter notifying me that he would be moving his cat into my SFR home immediately (he left the cat behind 2 years ago & suddenly he needs the cat to sleep due to a disability).    

You are getting disturbed at inconvenient times. 

Shawn wants to be able to sleep at night and this unit is "distressed".

Those customers declined both offers and stayed in a STR where they could cook, do laundry and sleep in their own room for less money than the cash rate. 

I will tell you that most investors would rather sleep good at night knowing their investment is in good hands and get a lessor return, than they would want to experience the opposite for a higher yield.  

Do the right thing and leave it in your personal name and get a good insurance policy so you can sleep well at night?

Another common one was noise disturbances.