Dear Jasper thank you very much for your prompt reply. You views have been very helpful.
Correct me if I am wrong the sentence "copy of the document" implies that it is to be a photocopy of the document without any attestation/certification by any authority including a notary public.
Cheers!!!
Yes, that's correct! I don't know which documents are required for Family Stream, but when I applied for AINP H1-B category, I made copies of reference letters & pay stubs to send to AINP without any certification (But I took immigration documents to notary service to be certified).