1. US (file jointly):
我太太报Resident Alien因为符合住满183天的条件, 而我按NonResident Spouse treated as Resident, and file-Jointly with the whole family.
2.Canada (file separately):
1) My wife (file separately): Non-Resident (because she is Resident Alien in US, therefore, she is Deemed-Non-Resident in Canada according to P6 of Guide for Non-Residents and Deemed Residents of Canada – 2010, and treated the same as Non-Resident when filing tax)
2) I file with my two kids: Resident