That’s what amazes me about people who will allow a builder to use obviously illegal labor. Do they seriously expect a contractor who is willing to flout immigration and tax laws to save a few bucks, to adhere rigidly to building codes instead of saving a few bucks there as well?
I once heard a landlord speak of his ‘good Mexicans’ and his ‘bad Mexicans’...obviously a reference to their work product. One shudders to think of dwellings the bad ones worked on.