Have you read point 20 of the document requirement list?
http://www.immigration-quebec.gouv.qc.ca/publications/en/dcs/documents-dcs-en-dyn.pdf
An exact answer might depend on which country/university you studied in/at; some mark sheets contain no other information than final scores. QC needs...
One_Topsy is right. Dependants can not land *before* PA, but there is no requirement for dependants to land at the same time as PA. they can follow later.
However, they (dependants) must land before expiry date on COPR/visa.
https://www.immigration-quebec.gouv.qc.ca/en/immigrate-settle/permanent-workers/official-immigration-application/requirements-programs/list-areas-training.html
And
http://www.immigration-quebec.gouv.qc.ca/publications/en/diverses/list-training.pdf
Short answer: If you are no longer working (on a visitor visa), you need a valid job offer & *probably/possibly* an LMIA to apply for a WP with your CSQ.
https://www.immigration-quebec.gouv.qc.ca/en/immigrate-settle/temporary-workers/stay-quebec/application-csq/workers-peq/after-csq.html
Which documents were not notarised?
As soon as your friend receives AOR (it will contain a file #), she could update her file using the form available for the purpose on the Imm QC website.
Have you seen that this has already been done months ago?
http://www.canadavisa.com/canada-immigration-discussion-board/whatsaap-group-for-quebec-immigration-t350622.0.html
Why try to "reinvent the wheel"?...
You need to enter canada before the expiry date on your COPR/visa. It's usually 1 year from your med report.
When you land as a PR, you'll need a Canadian address for your PR card to be sent to.
You can do what's know as a "short" landing, I.e. Land to validate your PR status then return to...
1. Not sure I understand your question.
2. No.
3. Yes: http://www.canadavisa.com/canada-immigration-discussion-board/updated-topics/-t350622.0.html;topicseen