Investing due diligence and what consults, tests, should be done

[Philip Young]

I'm a new investor with a primary and 2 investment properties: a 6 bedroom and a condo. I'm looking to do much more investing. I wanted to know what tests, consults, surveys and other due diligence items to run to fully make a better decision on potential properties.

So far I know to look for asbestos, lead paint, pests, mold, 

I would love some input on this

Thx

Phil