Machine wash, custom wash fold, dry clean, soap sales, concessions, etc4.  

From experience, if laundry included in the rent you will have people doing a full load for with just one T-shirt in the wash, leaving their laundry in the wash machine for hours and your water and electricity bill will most likely go through the roof (I learn't that the hard way). 

See if the tenants are having family members wash their cars there, and or laundry.

Running the cold water to wash your vegetables? 

If you do end up renting by the room make sure you mention it includes mowing the law (hire that out) and a weekly cleaning of common areas (they have to clean up, but pay someone to wash floors, windows, toilets, etc.).You might find it easier to do the whole house at first as you mentioned. 

For those that are unfamiliar, its just an empty room that has a wash tub that people would sit in with a pitcher of warm water and bath yourself.

That way each time there is a turn they bring a fresh set and take the used set with them to wash and use on the next turn.

If your desired next investment was either a car wash or storage unit facility, which would you choose and why?

So, my take away message was "he who waits, looses the deal".  

Was he too stupid to pass the new written test (a LOT of former lenders, it turns out, were too stupid to pass a test related to lending... please re-read that statement :P )?