You can have someone bring in an adequate generator to test whatever you feel the need to test.

Because you're essentially taking on the duties of a General Contractor without knowing what you're doing, or having passed the tests, or paid the money.

We are under contract (in the due diligence period) and trying to decide if we need to have a lead paint test done.

Yes wanted to test the STR out.

We've tested a few others but find them to be the most reliable for Vacant Land.If you're doing enough volume you can explore contracting with them directly.

I am running data exports and testing the data today. 

Cost Analysis: A failed septic test, while challenging, is not insurmountable.

I have an inspector do a meth test and a radon test (important in my area).

There is a test for that.

Test the waters with the sponsor for 3-5 years as they hold the properties in the DST, then decide if you want to align with them as a part of your long estate plan.Last (and best) recommendation: Ask your broker what the funds from operations (FFO) ratio is.