When looking, I would recommend that you first look at the reviews regarding communication, maintenance, turnover, and pleasantness of the overall interactions with the investor and PM group. 

Then listen to podcasts or interact on the forum to refine your education of specific topics.1.

To be fair though those interactions were only from Facebook groups. 

I could go on but as bad as it may sound you have to eliminate as much of the human interaction as possible (there's an obvious balancing act there) because humans cost so much money. 

Since July of 2014 I have used NREIG for insurance for my rentals but as of November 2021 when they switch payment methods things have gotten progressively worse with regards to my interaction with the company and now that they have "lost" one of my payments (I paid and have sent them the NREIG receipt as well as my bank statement showing the deduction but they can't find it on there end) I am looking into other insurance companies. 

Interact with people in forums, ask questions. 

A STR business is VERY customer service heavy with a lot of guest interaction.

@Mike Wood You are exactly right on your expense itemization, plus anything that may be extraordinary about the property in its operations, but i think you are spot onI always tell investors look at the OM as your starting point, never take those as the gospel.

I also like interactively helping folks qualify deals and help them get them closed over email.Call those and other attorneys and ask;  will you close a deal where the mortgage is NOT paid off?   

Since I started in this business in 2018 I have always looked at honesty as a tool I can leverage with great success, and it’s one I use all the time for every single interaction.