2) With all due respect, teaching math does not prepare you for running a business and producing Real-World spreadsheets, P&L statements and balance sheets.3) Every city has it's gentrifying areas and zip codes.

Respect!

When they grossly break your rules, they will have no respect for your property.

see for example this piece of advice from a well respected investor on BP.https://www.biggerpockets.com/forums/12/topics/1191473-do-th...i don't know anything about the company you mentioned, so can't comment on them specifically.  

But if the property is clean and well-kept—even if it’s nothing fancy—people are more likely to respect and take care of it.

Maybe photo updates.   

I understand there is crime there, just like many low-cost areas, but I reached out to a rehabber about taking some photos of properties for us and he told me to look in other areas because of the high crime rate and that "it just keeps getting worse." 

Some photos....

I’ll be respectful and nice to him even though I know how easy of a deal this is.

First off I would say be preparred to see people who you love and respect judge the financial journey you will start down.