Hi Teach 8,
The birht date on my mother-in-law's green card(the month was wrong), she wants to travel to Canada. Would that be a problem?
-It is possible. She needs to file I-90 to get the replacement. After she gets the I-90 filing receipt notice, she can go to the local USCIS office to get the green card stamp on her passport, then she can use this green card stamp for the travel before she get the replacement of green card.
Any suggestion. Thanks a lot!