(TFW) Temporary Foreign Workers

I’m looking for information with respect to housing and various conditions related to TFW in both Canada and the USA. (Preferably related to the field of agriculture)

(1) Have you inspected such housing?

(2) Conditions that you may have encountered?

(3) Are there limitations on conducting these inspections?

(4) Are there specific standards or guidelines that an inspector must follow?

(5) Any other comments or references to this topic.

Thanks in advance, simply conducting research on this topic.