I know that the answers are probably somewhere in this thread, but I couldn't find them.
1. I did my CBSA interview for my Nexus renewal at YYZ a few months ago. I need to do the CBP interview and wanted to know if I can do it at a land crossing when the first interview was at an airport. I have no cross-border travel planned.
2. Do I need an appointment at all CBP land crossings for the interview? Specifically, does Blaine and Lansdowne take walk-ins?
Thanks