New L1A/B from Canada without wife/spouse accompaning because she is in other country

USA L1, L2 Visa
#1

Hi I am married and living in Canada. Wife is in UK and has not been with me in Canada ever. nor does she have any canadian status (tourist, spouse visa anything).

I am in process of applying L1A/B visa for myself and I would like my wife also to get L2 for both of us to be able to move to US. The problem is that I am in Canada and she is in UK.
If I apply and appear for interview at US consulate in Canada, how would my wife get L2 because she is not with me?
Questions:

  1. Would they require her to be with me during my interview in Canada? OR
  2. would she have to book her own appointment in UK? OR
  3. should I go ahead and get L1 here in canada → then go to UK → do her processing → she appears for her interview in UK and I accompany her?

what are my possible options? Thankyou!

#2

No.

Yes.

You can get your L1 in Canada however you dont really need to go to UK. Once your L1 is approved, she can use the copy of your I-797 approval notice for her L2 stamping in UK.

Below information may help.