Thank you for sharing your situation and question with us.
We hope that others who have submitted their common-law sponsorship application successfully can share their suggestions with you.
For in-Canada sponsorships, the processing time for first stage is currently 17 months and CIC is currently working on applications received on September 3, 2013.
After that, it would still be several months before you would hear anything or see any updates for your application on-line.
You can see the processing times and which applications CIC is currently working on the Citizenship and Immigration Canada (CIC) website. Here you can compare the timelines for inside and outside Canada.
Here is an excerpt from section 10.1. Assessment of relationship,
You or your partner may want to contact the Citizenship and Immigration Canada (CIC) Call Centre directly for some suggestions and information regarding your situation.
You mentioned that the previous application was denied and that also your work permit will be expiring shortly.