Of course, I plan to discuss the questions/topics reviewed in Brandon Turner's book on Rental Property Investing, but wondering if anyone has any additional questions I should ask / info I should be sure to gather during our meeting?

Review their management agreement.

No personal recommendations, but you can search Google and look at reviews.

All parties sign in their cars respectively and attorney will stand outside in a parking lot and review docs when done.

Find an acceptable way to get them out and review your leasing policies and procedures so this doesn't happen again.

You need to review the HOA master policy to see what you need.

Again, without the "books" to review, I would be hesitant anything they're saying as far as how the property is performing.

Whenever you are purchasing a deed restricted property that is within an HOA you should review all the HOA documents including covenants, financials, rules and regulations to ensure you understand what you are getting into. 

A little bit about us:I am an investment funds attorney, and as such I have a lot of experience reviewing and understanding investment materials (PPMs, LPAs, etc.) from a legal perspective, but this will be my first engagement in the business side of investing and my first time evaluating deals for myself and my family.

I'm obsessed with performance metrics and so I track every single dollar that comes in and out of the account and I have my spreadsheets automatically update their performance metrics with each entry I make.