Thank youBintehassan said:I don't see a reason why you shouldn't apply for ur child's PR...normally if the reason for spouse not accompanying is a separation GOD FORBID then you will have to provide a custody document. But if the reason is like he has work somewhere else and don't want to leave that to join you then u can always create another legal document that shows full permission of the other parent for the child to travel with you to Canada. This is the normal procedure I am aware of that a few countries follow that I have lived in e.g. UK, Denmark, UAE and even Pakistan. Of course, since I am not aware of your personal situation, you should wait for other ppl's feedback too to have a different/similar point of view.
Might not directly relate to eARP but fits the bill and you can explain the reason of ur spouse not travelling in an LOE with legal documents