My main objective is generating a cash flow which pretty much eliminates local market. 

As a newbie, it is easy, and common, to head down multiple paths chasing shiny bright objects, with many of those paths just leading to time wasting and increased experience in learning what you don't want to do.

Remember, no system is perfect, so avoid the temptation of constantly chasing after the next shiny object.

Anything you do is fine since the objective is not higher return.  

A better approach might be to find a REI Association in the area(s) and ask other investors for their recommendations - it's not uncommon to choose a different appraiser depending on the type of property (residential vs commercial MFH vs. office or industrial) and the objective of the appraisal.

It also tracks who is in what house and all other resident info I might need, and is absolutely vital to our operation.Each of our houses has a live-in manager who, for free rent, ensures all residents are following a strict set of rules and guidelines that is enforced quantitatively with a points system to ensure objectivity and uniformity between managers and houses.  

It seems your objectives are to save on taxes and protect yourself....but none of what you propose accomplishes either of those objectives.  

Keep in mind they will also spend far more time raising capital and diverting their attention outside of managing the investment which is adverse to your objectives.  

I see story after story of people being upside down and having to sell at a loss because they chased the shiny object without enough due diligence. 

In fact most new BRRRR investors prioritize whether they can receive 100% of their capital back through a refinance over all other deal metrics and being laser focused on that particular objective often leads to investing in the lowest tier neighborhood where it is easier to complete the BRRRR process.