How can one convince such presumably higher educated homeowners to sell me the property at a nice discount off?

Presumably interest rates are higher now than when you purchase the property.

now that football season has started.. we can presumably start immediately

I presume that if I were to have more than 10 mortgaged properties then I would need to seek private/portfolio lenders in order to get the cash out portion of the BRRRR strategy. 

You can "set it and forget it" eventually, but for now, don't be afraid to watch things a bit and make changes where you're seeing the potential for growth and improvement.You don't mention it here, but I presume you have professional photos?

A few of the benefits I see are (1) full-time management on site so it should be nearly totally passive for me to own, (2) large, established property with advertising/marketing in place and good historical stats to based economics on, (3) rents should move and stay at/near market rates and increase equally for all owners, so no competition between owners, (4) presumably volume discounted property management fees.  

The better the property, the lower the cashflow and [presumably] less headaches & vice versa. 

The receivership did put in a full credit bid on the property, so my debt is presumably settled.Because I had hope of renegotiating the loan up until just before the trustees sale, I continued to put money into the property.

@Brant RichardsonIf the value is $700,000, when you inherit it, and then you sell it anytime for $700,000, there would be no Federal tax owed, presuming stepped up basis.But if that property was given to you the owner's passing there would be no stepped up basis.

Presumably the dry cleaner uses chlorinated solvents (many now use petroleum-based chemicals which are "greener").