After/during the transaction, I give them my contacts that they may need such as a cleaner, contractor, property management, etc. 

I manage my own STR and have one cleaner to do the turnovers.

There's no such thing as cleaner energy?

There are lots of rental management companies, and finding a good cleaner and support person is possible. 

So outsourcing some degree of property mgmt would be a must... but the deal won't work paying a local property manager a large % of my revenue...Instead, I would set up my "boots on the ground" (cleaners, handyman), and would need an offshore virtual assistant to manage guests and coordination of my local team. 

interview and find a great cleaner.

At move outs I always hire cleaners and bill accordingly from their deposit, then go over it again my self before showing.

Not having to go find a good cleaner and handy person, proof of regular maintenance on the hard systems (A/C, Furnace etc) helps.

Either you do all the work yourself, i.e. no contractors, no managers and no cleaners - or you do 100 hours of hands-on work and none of these other people do more hours than you.

Depends on what sheets you buy and which cleaner you choose.