Only in the case of an on-site manager that could not be shared for some reason, you might pay too much for management.

The seller has an on-site property manager in place receiving free rent for one unit + $1000/mo salary + another unit as an office.

Even a site where you could look up sold multis with prices and then I could reverse engineer. 

We have worked previously with Chris Brown of Edmund & Wheeler, Inc who specialize in larger scale 1031 requests (his site can be found via Google). 

You can go to your states site to form one, it typically doesn't take much time, you can do it online and the cost is a couple of hundred dollars usually.Please reach out if you have any questions.

Cleaning fee?

Within 2 weeks of me showing up everyday the contractor was suddenly finished and left the job site.

Cozy also has online rent payment and syndicates apartment listings to a few sites (realtor.com, doorsteps.com) as well so it's a good tool for small landlords. 

GIvIng an industrIal property a clean bIll of health can be quIte valuable when it comes time to sell it.

There may be sites or services that will give you a vacancy number.