I have even had to remove the skeletal remains of disconnected K&T that was totally cut and not in use due to my insurance company wanting all existing components whether functional or disconnected to be removed.

That's a necessary component. 

, status of major building components (roof, HVAC, structural, electrical, plumbing), accounts receivable aging (are all tenants paying or is the $20,500 schedule rent?)

The tax advantages of buying/holding gas stations are pretty great.Many of the components of gas stations including pumps, tanks, external parking areas, and other equipment are classified as either 5 or 15 year property so you can bonus depreciate a lot of it (minus the land value) and get significant deductions in year 1.With the 2025 bonus depreciation rate at 40%, a $1 million gas station acquisition could still lead to $100K+ in year 1 deductions depending on the specifics of your deal.

In my market, almost all sellers are still offering buyer compensation so you could hire an agent hourly, pay them, and then the seller will also pay them comp on your behalf so it doesn't really make any sense to do and no good agents will do this in my opinion.

You've done a terrific job of detailing the components of each program.

Sugar wins a lot more deals than vinegar.  

If the house has all major components in working order a few cosmetic items doesn't make it not livable.

Being a nutrition and fitness coach, your point below is the largest component that I have seen. 

Single family residential continues to be the main component of our investments within RAD Diversified REIT.