It depends on how long the immigrant officer gave your mom (just write on the I-94) when she enters the US at the border.
It may be any time, 3 months, 6 months or whatever.
And it has nothing to do with your mom's visa expiration date.
You are welcome.
It may be any time, 3 months, 6 months or whatever.
And it has nothing to do with your mom's visa expiration date.
You are welcome.