回复：请教有没有熟悉加拿大无税务居民在美国长期居住和工作的？

If you are canada non resident,you don't have to pay tax,but you have no any benefits from canada. However, in the future,if you return canada and become resident again, after three months, you can have the same benefits as other residents. As for RSSP, you can keep as it is right now,or take out and pay 25% tax