My wife and I were residing in the USA. We are Canadians citizens and did not know that we had to go back and forth every 6 months. She never worked in the USA I did. When we came to my brother wedding and tried to go back we were told to sign an application for admission withdrawn. It has been a year and 2 months, now my wife wants to go back with our 3 kids one of which is an American to visit my Grandmother who is very ill. Can she apply for a visa or is there something else she might need to do. Can anyone please help us.
Thank you;

