A couple of things I do that are not immediate walk away scenarios but helpful are:I start at the wall and walk the floor to the center of the room to check for foundation concerns to have my contractor look at. 

I assume the HOA Has to be some type of legal entity, registered with the state, usually the divisions of corporations, or whatever your secretary state calls it.BTW, is this a wood wall, concrete, etc?  

He recommended I get someone who can remove the microwave, adjust the vent to go back up, and if need be, build or repair a venting structure to the outside wall about ten feet away. 

If they do not have any then there is your answer  Just because a company can find you a good deal does not mean that they can get you the monthly return year after year on that property Always remember you own four walls and a roof ,they owned the business system it’s operating inside of that to give you the actual return that it was promised and that’s easier said than done if they don’t have correct policies procedures in structure Always make sure that your business model aligns with theirs to make sure that they are going to help you reach your ultimate goals well if they cannot have that conversation with you then maybe they were the wrong team to leverage your properties with

Here's an article about them in the Wall Street Journal, you might see a familiar name in it.

Most are pretty obvious to anyone with even a little experience, but if you throw enough **** at the wall, some will stick.

I have been a wall flower on bigger pockets, it's podcasts, and I am an avid reader of all things real estate.   

Most REO sellers will not turn on or allow water to be turned on, or allow repairs for appraisals or before closing, most secondary market loans require all utilities to be on at time of appraisal, minimum 5 years or more roof life left, no holes in walls or flooring larger than a quarter,  or significantly soiled flooring, walls, ect. 

Electricians ran everything back in the walls with minimal damage to walls.

We've opened walls to find hidden knob and tube in service.