Dear Mystique,
I have a cousin in Montreal who was in the same situation..so meantime waiting to complete the required years of stay to sponsor her mum, she applied for a visitor visa and was able to stay in Montreal for 6 months max.
CSQ (with interview) - March 2015
Application sent to Nova Scottia - May 2015
AOR and file number - July 2015
Start processing application - Aug 2015
Medical request - Dec 2015
Medical done and ecas updated - Dec 2015
PPR - 20 Jan 2016
VO - SGVO