Only reason I've been doing it is to get 0% business credit card limit increases.  

I work with 4 electricians , 3 plumbers , 4 HVAC , 5 or 6 framers , if 1 is busy I use another . 

I forget; it was payment processing related) that required me to have a website for the business.

For another business I run I do post daily accountability in a FB/mentorship group and that does help me stay on track.

Most fields in the real estate world will unless you are an employee to a business.

Easy sign up for a sole proprietor.I think new flippers are consumers & don't understand a business mindset.

Each potential buyer has come to their own conclusion that it would be too much hassle and risk to manage in this fashion vs a traditional rental even though the average cap rate in our area has been half that at best.

You could simply let them know that your schedule is busy and they need to schedule a time with you in advance. 

LTV & CreditEliminate the emotion and treat this like the business it is.In my opinion it does not matter who the borrower is as long as they have a track record of ATR (Credit)And I feel comfortable with the leverage (LTV)

How about using SDIRAs not to hold assets but to operate businesses?