It "was remediated with cap in place so there is still contamination at depth".

I have a in depth background in construction and tend to understand what quantifies as a major issue more then most. 

Absolutely incredible in-depth information from an expert in the field!

If you have the depth for an inside mount, I'd go that route with curtains, as mentioned previously. 

My property is huge and big enough for six units.I was told that I'd have to get a really in depth Survey first.

However I think you have laid out a more in-depth understanding of these traits than CM even has.     

The shameless self promoters are gamblers, narcissistic, and constantly chasing the next money making scheme.

Programs that market themselves as shortcuts often cannot replace the depth of understanding that comes from study, experience, and engagement with the legal framework surrounding real estate.Consider taking time to familiarize yourself with local laws and regulations.

@Thomas HaessigImpossible to really provide any type of in depth response based on information provided.

Its good to be exposed to those things at more depth because its like another tool in the tool box that could be used if need be.