Fri Aug 19, 2011 11:43 am
Couple of points:
Your child's US citizenship does not give you any immigration benefit until they are 21.While your child has the right to live in US, you and your spouse do not. You have the responsibility of deciding where she will live, not her.
Your wife would not work in US simply because she would not be allowed to, not because of any choice on her or your part. If she left canada for more than 183 days in any 12-month period, she would lose her provincial health coverage in most cases.
Buying a place in US will not harm you in terms of being considered a Us resident. It will merely be like a cottage.
B2 visitor (which any CDn gets when crossing the border to visit) is still the only way to go down. You both would have no problem meeting the foreign residence requirement of B2. However, regular B2 entry is for six months at a time and repeated long entries will be prevented at border. there may be the possibility of extending the six months after initial entry, but these extensions are rarely granted, and this could only be done one time. Afterwards entry into US woul dalwys be scrutinized.
There is a relatively new "partner B2 or family B2" which while usually applying to common-law or same-sex spouse of a non-immigrant, but can be used by parents of non-immigrants, but for your spouse to use this the child would have to be a non-immigrant, not a US citizen. Partner B2 has the same residency requirements (which, as isaid, should not be a problem given the situation you describe), but allows for lengthy stays concurrent with the other family member's temporary status.
Perhaps your wife could apply for entry on the family b2, based on your son's non-immigrant status. You did not say what status he was in.
Otherwise, I would suggest that your and your spouse minimize your time in US to less than 183 days in any rolling 365 day period, by returning to canada as often and for as long as possible, perhaps leaving your daughter in the care of her relatives/brother for short durations, and/or having her come back to stay with you whenever possible.
You would need to keep meticulous records of your entries and exits, and always carry proof that your and your spouse live in canada full-time, and that you are not staying more than the allotted time. You would neeed this proof at the border, and for your provincial health system.