The owner completely gave up on his house so it was up to me to clean it up best I can.

(Now it is a lot with some (non-human) charred remains to clean up.)

However I’m cleaning my apartment more thoroughly after my guests from NYC, Cali, and China.

It’s usually good for $10-$40 per unit each month if you set it up right.Car wash station is another where you have a dedicated spot with water and power and sell cleaning supplies/rent a Vaccum Have your tried renting out your model unit as a short term rental as an amenity for tenants that have family visiting and don’t have the room to accommodate

I am looking for the following if you could please send me contacts for: Wholesalers, property management, architects, engineers, framers, finishers, clean out crew/demo, insulators, conrete installers, window installers, tree removal. 

When you can, jump in the pool and test the water.A little caution with that water, as unless you have a good idea what's under that surface, going head first is not the choice I would make.Just don't expect to get in the water and jump out clean and dry the first time.

This may force attrition or get them acting more in line with where you see the area going.And the faster you can get the exteriors of all the buildings cleaned up and looking nice, the better. 

We clean our units before we start showing.

And are some of the fees check to see if the title is clean/clear?

Fresh paint everywhere including ceilings, replace any bad flooring, ensure everything is clean and fresh looking.