Will b visa return after 6 months a problem

jubjub

New Member
Hi,

My mother is coming in April with travel visa. In genral she can only stay for 6 months eventhough the visa has multiple entry for 10 years. Can she go to Canada and reenter to US after 6 months? What will be the risk?

Also, if she apply for greencard through me (I am a citizen) after she gets here, how long can she stay? How long must she stay? Thanks.
 
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