We were extremely fortunate, and were able to do the DCF. All in all, it was a 3 month process, 4 if you count moving time.
Here's what happened:
Jan 2 - emailed Montreal office requesting to file DCF. I used subject line I-130 Filing Urgent Request.
My reply came the same day, asking for basic information, why the request was being made and where to send it to. "Once we receive all the information, the Visa Chief will review the case and will advise if you can file your I-130 in Canada. When you reply to us, please include “I-130 Filing in Canada” in the subject line of your e-mail." Did that with supporting documentation the following day and did not hear back immediately. I had also asked them to give me the Vancouver email address so I could get the process scheduled there. 2 weeks went by before I finally got the Vancouver email address to use, and so I just emailed them and requested an appointment without waiting for anyone to say I could. This is important, I think because it sounded from the email like I was going to get some magical pre-approval before I went and did this, but that does NOT happen. Initiate with Montreal, and once acknowledged, get an appointment with your local consulate to file.
1/21 I emailed the Vancouver Consulate to request the appointment.
1/24 I got a reply from Vancouver telling me what we would need and to reply once we had it all and they would schedule an appointment. I replied immediately, expecting another 10 days to go by... 2 days later, on a Friday, we received an email scheduling us for the following Wednesday!
1/29 Appointment in Vancouver to file for a DCF Just a note -- when you file at a consulate, SAVE YOUR RECEIPT and bring it to your interview! The Montreal consulate had NO record of us paying the initial filing fee and gave my husband an attitude about it until he produced the receipt.
2/20 - we received packet 3 and completed it. Just a note, you do not need an FBI clearance if you previously lived in the US. That was very confusing and I had to ask Montreal directly. Took 2 days to get a reply by this point they were pretty responsive which was fantastic. Completed packet 3 and submitted it 2/24.
2/27 - Received packet 4 with an interview date 4/1.
3/21 - Medical completed
4/1 - interview completed
4/8 - Passport & packet received in the mail ** The manila envelope has a rubber band around it with a piece of paper stressing "DO NOT OPEN" well, the rubber band had ripped a 1.5" tear in the upper right side of the manilla folder - big enough for about 5 CBP agents to gather around and discuss it while we were crossing! 🙈
5/10 - Landed at Peace Arch, in Blaine, WA.
6/2 - Car imported in Del Rio, TX weeks later and that's a whole saga for a different thread and I do not want to get into so here is what I will say: give your car manufacture more than 30 days to give you a letter stating your car is rated for US highways and has no recalls.
I did contact my local congresswoman's office for assistance in early January when I thought I was getting nowhere. They'd helped me with a VA issue and were happy to jump in and support my situation (medical condition needing treatment and wanting my husband with me). But by the time I got her assistance, things were already moving and she never had to call on my behalf or chase anything down. It was great to know she was there to support, but thankfully, we never needed to rely on her.
Good luck!
TorvaL