If you do decide to work with them, you could set up a clear partnership where they’re equity partners and you handle the management and operations.

I intentionally keep mine in a different county than I live in too, just in case they do notorious serious or something.I don't own many rentals these days, but if I did, id have one of the online pay services or set up an ACH on their paydays.

I personally dont do any of that.. every market / or most will have an active fix and flip sector or buy and hold sector the important thing to me is the operator full stop.. great operator will do well in any market and all the national data simply is noise at least at my level. ( loaning our own money and JV deals with our own money)  we dont broker or anything like that.

Which is also one of the 3 fundamental needs of a business most often (customers, product/service, place of operation). 

I know and work operators who do this all the time..

Here is a recent post of mine that addresses your questions:Cost Segregation - The Basics (biggerpockets.com)You don’t need to complete it before the end of the year to use it for your 2024 taxes.

The issue I have seen with these types of properties is they could have two valuations - the value of the real estate which the structures will have little value and you have the land the other is as an operating business just like a bed and breakfast would have - real estate has value but it operates a business now you mention 12k / month but if someone also has to manage the property what is that worth and what would someone pay to manage a property like this?

An entity that operates hundreds or thousands of apartment units has far less concentration risk than an owner of a few rental homes, whose tenants may all be impacted by COVID-19.Do you think Portland’s ten-year trend of positive economic growth for landlords will continue, or will it flatten out, possibly even declining in the wake of COVID-19?

While I don't believe that you need a full blown business plan, strict operational budget, timeline, scrum board, etc...

I manage a "shared space" for a friend of mine.