2 conditions:
1.legally stay in US, or Canada, or maybe ...but not china
2.full-time job hunting
As long as you are not H1, how do you keep your status? as F1/ B1, you can not do 2nd. if H4, I don't know.
1.legally stay in US, or Canada, or maybe ...but not china
2.full-time job hunting
As long as you are not H1, how do you keep your status? as F1/ B1, you can not do 2nd. if H4, I don't know.