I also ask the prospects to let their employers/landlord know I will be calling. 

This is why the big corp builders or regionals control so much of the larger developmentsthe deals i funded are 34 lots 160 lots and 80 lots respectively and each of them have contracts on them by Toll and Lennar and one regional but they only close when we have permits in hand. 

This stuff will hit you if the things were done without permits..

You can't send a prospective guest your number either (until after they book and pay). 

Happy to connect and educate some more whenever your schedule permits!

You must get a permit, drill holes in the bottom, demo the bondbeam down a foot or so, and then fill with compaction inspections along the way..... last time I checked it was about $10,000

NOTE: we charge extra for this.4) What about a floor plan, so prospective tenants can get an idea where their furniture may fit?

You’ll want to check if your specific work falls under their home improvement contractor licensing, or if there are additional local permits required depending on the county.

There just seems to be a lot of credit and/or background issues with prospective tenants.

I'm a contractor and just did a bid on an SB9 project in Los Angeles County - Altadena area (building permit jurisdiction).