my niece came to the US as a minor on tourist visa and overstayed. She will turn 18 in 2 years. She would like to go to Canada for further studies. Since she came here as a minor, if she’s leaves before the age of 18 and goes back to her home country she’ll not accure a ban from the US. What are her chances of she goes back (to her home country) and applies for Canadian study permit.