Hello
My situation is like this, I came trough lmia in April 2015 with 2 years WP. I applied for PR in Nov 2016 and I though it was enough so, never applied for a WP extension.
Right now I realized and just stopped working because my WP expired last April the 30th.
So - you've been working without authorization for 6 months? ... ouch.
My questions are, is there any way to apply now?
No. You would have been eligible to apply for a BOWP after submitting your PR application, up until the date your work permit expired. Since it has expired, you are no longer eligible for a BOWP.
How about my pr application, could it still go trough?
I would recommend finding an immigration lawyer ASAP. Typically, working illegally is grounds for refusal of a PR application. As well as getting deported and banned.
how long am I allowed to be en Canada?
You are way past the 90 day "grace period" during which you can apply to "restore" status as a visitor.
If I leave the country now, could I came back as a visitor at least?
Not sure.
All in all, which would be the best way to fix my issue??
Speak with a lawyer. And prepare to leave ASAP.
Sorry for the terrible news... that's a heck of a mistake to make, but you certainly aren't the first. Please do seek legal assistance, I don't know what a lawyer can do for you, but you need to find out.