Just because you don't make any money on them, doesn't mean you aren't responsible, along with the source of the actual plans, for any mistakes in the plans, or even any mistakes in construction from lack of info, misunderstanding, or just plain stupidity of the builder/user of the plans.The licensing agreement will have guidance on having plans adjusted for local code, reviewed by architect/engineer etc. 

You will want to look out for a lender that is responsive, straightforward and has a track record of reviews and closings.

It takes 5 minutes, at most, per property then I have a report I can review and share.

They declined my application after a week of review, citing that "Non-retirement accounts cannot hold retirement funds".Can you please let me know your suggestion here?

You're essentially reviewing homes, and showing the host what they need to doo to keep standards up without the title of being the home manager. 

I have pretty diverse investor clientele.

What do you find is the most effective way to ensure guests leave a review and hopefully a good one?

Our investor class is not primarily made up of other real estate investors looking for double digit returns but a mix of accredited and non accredited investors looking for diversity and monthly distributions.

So I've been doing my own taxes in Turbotax for 20 years now (I only own 2 rental properties but both were BRRRs), and I finally got stuck on something and went to a CPA 2 years ago, and he reviewed my past 5 years of returns and pointed out that I had made multiple mistakes (incorrectly categorizing repairs vs capex, calculating basis and therefore depreciation wrong, failing to realize that certain expenses for a home converted to a rental property start being deductible the day the property was placed in service vs actually occupied, the list goes on). 

I do income potential reviews for clients all the time, every market has subtle differences but these are generally good indicators.