As I have told you before, they are not allowed to deny you entry, there is no procedure for that unless you are a threat to Canada, a wanted criminal, terrorist or something like that.
As a PR, even if you have not met the residency requirements, they must let you enter. They can however report you for not meeting the requirements. If they do, you can appeal this.
I can not tell you the odds of getting reported at the land border or the odds of winning an appeal. However, it seems to me that a lot of people pass through the border without a problem, sometimes with hassles or a stern talking to from the immigration officers but pass through none the less.
If you were to say that you stayed outside Canada for a good reason, taking care of a sick relative for example, and you have a job offer now and are ready to settle and you will deal with all this when you renew your PR card once you are inside, I think they may let you pass. In any case, your odds of keeping your PR are way better than if you try for a travel document.
However, as I have also told you before, if you want to be perfectly honest with immigration, you can apply for a travel document from your country, state your reasons why you did not meet the requirements whatever they may be and see if they will let you keep your PR. That way, if you lose your PR, you can apply for a work permit, not that you would be guaranteed to get it but which method you take is completely up to you.
As a PR, even if you have not met the residency requirements, they must let you enter. They can however report you for not meeting the requirements. If they do, you can appeal this.
I can not tell you the odds of getting reported at the land border or the odds of winning an appeal. However, it seems to me that a lot of people pass through the border without a problem, sometimes with hassles or a stern talking to from the immigration officers but pass through none the less.
If you were to say that you stayed outside Canada for a good reason, taking care of a sick relative for example, and you have a job offer now and are ready to settle and you will deal with all this when you renew your PR card once you are inside, I think they may let you pass. In any case, your odds of keeping your PR are way better than if you try for a travel document.
However, as I have also told you before, if you want to be perfectly honest with immigration, you can apply for a travel document from your country, state your reasons why you did not meet the requirements whatever they may be and see if they will let you keep your PR. That way, if you lose your PR, you can apply for a work permit, not that you would be guaranteed to get it but which method you take is completely up to you.