Deepsky:
See the following link and download the 'IP 8" it will answer your questions.
http://www.cic.gc.ca/English/resources/manuals/ip/ip08-eng.pdfI am pasting an excerpt from the IP8. It states that you can apply for permanent residence without current status.
I would highly recommend staying in Canada until the process is complete, you will likely have a problem getting back into with the lapse in your status
IP 8 Spouse or Common-law partner in Canada Class
Appendix H—Public Policy Under 25(1) of IRPA to Facilitate Processing in accordance with the Regulations of the Spouse or Common-law Partner in Canada Class
1. Purpose
The Minister has established a public policy under subsection 25(1) of the Immigration and Refugee Protection Act (IRPA),
setting the criteria under which spouses and common-law partners of Canadian citizens and permanent residents in Canada who do not have legal immigration status will be assessed for permanent residence. The objective of this policy is to facilitate family reunification and facilitate processing in cases where spouses and common-law partners are already living together in Canada.
2. Acts and Regulations
IRPA subsections 21(1) (relating to status only) and 25(1); IRP Regulations subsections 124(b) and 72(1)(e)(i) (relating to status only).
3. Policy
CIC is committed to family reunification and facilitating processing in cases of genuine spouses and common-law partners already living together in Canada. CIC is also committed to preventing the hardship resulting from the separation of spouses and common-law partners together in Canada, where possible.
This means that spouses or common-law partners in Canada, regardless of their immigration status, are now able to apply for permanent residence from within Canada in accordance with the same criteria as members of the Spouse or Common-law Partner in Canada class. This facilitative policy applies only to relationships in which undertakings of support have been submitted.