Thanks so much for the reply. It was helpful. In regards to her status after she applies for PR, it was my understanding that it was her responsibility to still have a valid work permit for the duration of time til her application was approved. Am I mistaken? Please advise if this is not that case. Thanks!
Applying for the open work permit keeps her current permit (status) valid on implied status. Basically it means that because she is eligible and has applied for a new permit BEFORE her old permit expires, she remains on the same status as the old permit until a decision is reached on the new one. Clear as mud? But she will be fine if she follows those instructions.