I am planning to land in Canada in July and come back here in US after 2 weeks.
---- you can come back next day also, go to nearest HRDC office apply for SIN Card it will be also sent to your friend address if you provide correct address of your friend in Canada in 2-4 weeks time and friend cancan mail you once he recieves
Do I have to wait for my PR card before I leave Canada?
---NO
Can I just ask my relatives to mail my PR card?
--YES, they can send you your PR card by Fedex
Please reply soon as I have to buy my airfare ticket.
Thanks in advance.