Your question makes me want to check my state rules (Illinois), because I've thought many times that I might as well manage other people's STRs if I have all the processes set up to manage mine anyway.Finding a cleaning crew for 1 STR is difficult, but 5 is easy. 

It steam cleaned up great between turns.

The window trim could not be fully cleaned, so I replaced the window trim and made sure the bathroom was very clean.

I can clean up and do the smaller jobs myself.

Sounds like the classic living out their deposit scenario in which they will deplete everything and leave you with nothing to cover repairs, clean up and other turnover costs. 

No grout to remove and regrout when it get moldy when tenants dont clean and maintain.

I am a do'er and don't mind getting my hands into DIY projects on a property that needs work, so I am really hoping to invest in the next year.

Quote from @Glen Wiley:and for some people going from punching a keyboard and sipping Starbucks, to changing dirty sheets, cleaning other people's toilets, and putting up with all the customer service craziness is not as fun as it looks on TV.

That GRI does include income for cleaning, taxes etc. though normally, which is really pass through expenses for the most part.

The house I purchased is in decent shape on the interior as far as lead, nothing I can’t DIY.