I just had a call with my lawyer and asked her whether, after receiving the visa, I can enter the US to activate the green card, then return to Canada to finish my affairs, and later enter the US again using the stamp in my passport. She questioned this approach. She said that the officer might not let me back into the US. I am her only client from Canada. All her other clients are from Europe, and she simply has no experience with re entering the US in such a situation.
AI suggests that the I-551 stamp that will be placed in the passport upon entry is a temporary green card that can be used to enter the US until the physical card is received.
Is that correct? Can I safely enter the US to activate the visa, open a bank account, obtain an SSN, and then return to Canada for two months to finish my affairs?