I 864, I 864A, I 864 EZ, I 864 W or I-134

[HeatDeath 430]

The Canadian consulates are very good about answering emails quickly. Anything you get in email from a consulate trumps whatever anything else says. When I was going through the consulate-interview stage I barely needed VJ at all! Any questions I had would be answered authoritatively by Vancouver within a day or two.

I did follow a piece of advice I read here, which may have made the interview smoother and definitely made things easier for AOS:

The K-1 visa is an odd hybrid between a non-immigrant and immigrant visa (since it is a non-immigrant visa that allows immigrant intent). The consulates require nonimmigrant visa applicants to fill out I-134's, and immigrant visa applicants to fill out I-864's. The documentation requirements for an I-864 are a strict superset of the docs required for an I-134. So the advice I read and followed was to gather and bring to the interview all of the documents required for an I-134, plus all of the extra documents required for an I-864 [but not the form itself]. The extra documentation, showing that you can qualify under the I-864, can sometimes make the interviewing IO feel more relaxed about your financial basis, and anything that relaxes an IO is a good thing.

This approach, as I mentioned above, has the additional advantage that you do all of the invasive and psychologically uncomfortable financial paper-gathering done all at once, and now you have all of the stuff you'll need for the I-864 during AOS gathered already and ready to go, a few months early.