1. file I-539 to change to B2 status. (not B visa)
2. no advantage. You need to have Canada passport to enjoy more non-immigrant benefits based on US-Canada treaty.
3. I-539 COS first. Canadian PR without strong ties with Canada is not necessarily easier to get US B visa. Not much different from other PRC passport holders (with or without Canadian PR).
2. no advantage. You need to have Canada passport to enjoy more non-immigrant benefits based on US-Canada treaty.
3. I-539 COS first. Canadian PR without strong ties with Canada is not necessarily easier to get US B visa. Not much different from other PRC passport holders (with or without Canadian PR).
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