One component of our communication consists of monthly news updates on the portfolio and individual site performance, which are uploaded to our investor portal, including monthly reporting of financials and individual facility performance.

They apparently do not have time to verify permits (under what criteria units were added or that the work was even done with a permit).To the OP, I fear your property will consistently appraise low when obtaining HELOC or refinancing and that a re-appraisal will not reflect what you are seeing of homes being appraised with an agreed upon negotiated selling price.I am not saying this is the way it should work. 

Become great at systems and processes because that is really the only thing that makes investing work consistently.  

Do you have enough time in these that you can show consistent trends in expenses and vacancy rates? 

Transparency always wins.3)Make sure to have mattress and pillow protectors, top-notch cleaners that take pictures of every sheet as they lay it before guests get there, and consistent pest control.

Hiring a good property management company who's on top of things, or ensuring you or someone else you hire put aside additional time for property inspections on a more consistent basis.

If you consistently analyze properties, recognizing a good deal will be much easier when it shows up.

For now, enjoy the project, but consider transitioning to a vacation rental later for consistent income.Overall strategy..Balancing multiple properties is challenging, so leveraging property management for the rentals would be wise.

What I mean is, the payments made to the seller, is the total payments consisting of principle/interest, property taxes and mortgage insurance all wrapped into 1 payment and made to the seller?

Which consists of attorney, contractor, realtor, and property manager.