Hypnos

Write "Unknown".

As stated, whoever told you she cannot travel outside of the US with her expired green card and original extension letter is simply wrong. The extension letter expressly says "Travel and work authorised".
When you said you were going to contact the embassy I was concerned that they would give you some bs like this and it seems that this did occur.
Have the airline confirmed that they will permit her to travel with her original extension letter? If they still refuse then I would try another airline, perhaps one who aren't morons.

Whoever said she cannot travel with the extension letter is wrong. Thousands of people travel with this combination and have no troubles. It is bad whoever she spoke with at the consulate said that. They are a consulate though, and maybe aren't used to dealing with USCIS and CPB stuff. She certainly does not need special permission to travel beforehand. But beware of other secondhand stories, like the person she talked to. We don't know their situation. You can travel with original letter and expired GC.

http://immigrate2us.net would probably be the better place to ask questions like that.

Unfortunately, if you are not willing / able to put off moving to the US for a few months then a period of separation is extremely likely.
As already stated, if she pulls up to the border with a truck full of her belongings - without an immigrant visa - then there is a good chance she will be denied entry. She does not magically get a pass because she is Canadian or living with (or even married to) an American. To CBP she would merely be a Canadian citizen seeking a non-immigrant entry, and if she could not prove to their satisfaction that she would leave after her period of authorised stay expires, then a denial of entry is a strong possibility.
Get married and file the I-130 immediately, but it will take ~8 - 10 months until the visa is in her hands. During that time she could try to enter the US to stay with you for a few months, but again she may need to prove to CBP that this would be a temporary visit.
Unless someone is dying there is no way around these requirements (and even then it's iffy).

Just my opinion but I am not sure how it can really help since, as a K1 visa holder, you will not have authorisation to work for several months at least.

Do you need a B-2 visa?
If you apply for one and are refused it makes it extremely unlikely (although not impossible) that any ESTA application you make will be approved.
You must declare any such visa refusal in the ESTA questions when you apply for it.

Unfortunately, if you are not willing / able to put off moving to the US for a few months then a period of separation is extremely likely.
As already stated, if she pulls up to the border with a truck full of her belongings - without an immigrant visa - then there is a good chance she will be denied entry. She does not magically get a pass because she is Canadian or living with (or even married to) an American. To CBP she would merely be a Canadian citizen seeking a non-immigrant entry, and if she could not prove to their satisfaction that she would leave after her period of authorised stay expires, then a denial of entry is a strong possibility.
Get married and file the I-130 immediately, but it will take ~8 - 10 months until the visa is in her hands. During that time she could try to enter the US to stay with you for a few months, but again she may need to prove to CBP that this would be a temporary visit.
Unless someone is dying there is no way around these requirements (and even then it's iffy).

I don't understand what you're saying because you are no better than anyone else, so the immigration process applies to you as equally as it does to anyone else. MsHogan, myself and many others on here are just trying to inform you of the reality of the time-consuming process that is immigration. We have no motive to make you feel worse or bad about anything - it is just reality.
And, to be honest, I am sorry you feel that you are so much more important. My case is most important to me sure, but not so important that I feel like I should be pushed to the front of the queue and everyone else should wait. It is a process and everyone who applied before me deserves to be processed first. This forum is a community for people to support each other and reward one another for patience. We celebrate when others are finally successful, and we empathize with those of us still waiting.

Unfortunately, if you are not willing / able to put off moving to the US for a few months then a period of separation is extremely likely.
As already stated, if she pulls up to the border with a truck full of her belongings - without an immigrant visa - then there is a good chance she will be denied entry. She does not magically get a pass because she is Canadian or living with (or even married to) an American. To CBP she would merely be a Canadian citizen seeking a non-immigrant entry, and if she could not prove to their satisfaction that she would leave after her period of authorised stay expires, then a denial of entry is a strong possibility.
Get married and file the I-130 immediately, but it will take ~8 - 10 months until the visa is in her hands. During that time she could try to enter the US to stay with you for a few months, but again she may need to prove to CBP that this would be a temporary visit.
Unless someone is dying there is no way around these requirements (and even then it's iffy).

Unfortunately, if you are not willing / able to put off moving to the US for a few months then a period of separation is extremely likely.
As already stated, if she pulls up to the border with a truck full of her belongings - without an immigrant visa - then there is a good chance she will be denied entry. She does not magically get a pass because she is Canadian or living with (or even married to) an American. To CBP she would merely be a Canadian citizen seeking a non-immigrant entry, and if she could not prove to their satisfaction that she would leave after her period of authorised stay expires, then a denial of entry is a strong possibility.
Get married and file the I-130 immediately, but it will take ~8 - 10 months until the visa is in her hands. During that time she could try to enter the US to stay with you for a few months, but again she may need to prove to CBP that this would be a temporary visit.
Unless someone is dying there is no way around these requirements (and even then it's iffy).

Unfortunately, if you are not willing / able to put off moving to the US for a few months then a period of separation is extremely likely.
As already stated, if she pulls up to the border with a truck full of her belongings - without an immigrant visa - then there is a good chance she will be denied entry. She does not magically get a pass because she is Canadian or living with (or even married to) an American. To CBP she would merely be a Canadian citizen seeking a non-immigrant entry, and if she could not prove to their satisfaction that she would leave after her period of authorised stay expires, then a denial of entry is a strong possibility.
Get married and file the I-130 immediately, but it will take ~8 - 10 months until the visa is in her hands. During that time she could try to enter the US to stay with you for a few months, but again she may need to prove to CBP that this would be a temporary visit.
Unless someone is dying there is no way around these requirements (and even then it's iffy).

Unfortunately, if you are not willing / able to put off moving to the US for a few months then a period of separation is extremely likely.
As already stated, if she pulls up to the border with a truck full of her belongings - without an immigrant visa - then there is a good chance she will be denied entry. She does not magically get a pass because she is Canadian or living with (or even married to) an American. To CBP she would merely be a Canadian citizen seeking a non-immigrant entry, and if she could not prove to their satisfaction that she would leave after her period of authorised stay expires, then a denial of entry is a strong possibility.
Get married and file the I-130 immediately, but it will take ~8 - 10 months until the visa is in her hands. During that time she could try to enter the US to stay with you for a few months, but again she may need to prove to CBP that this would be a temporary visit.
Unless someone is dying there is no way around these requirements (and even then it's iffy).

I hate to add to the negative vibe but my first question is whether or not you already have your marriage license for the state of New York. You will need to apply for that at least 24 hours before you plan to get married. I was married in Niagara Falls, NY so yes, I'm familiar with this part.
On to the next part... to be completely frank, your wife is going to need to find a job and contribute. I'm sure this sounds harsh but unless you want to;
a) pay for everything yourself while being separated OR
b) stay in Canada a while longer...
you don't have much choice.
There are many MANY stories here on the boards of people who have been waiting a very long time to be reunited with their loved ones. They are also not all as fortunate as we are in Canada to be able to visit without needing a visa. With that said though, your wife, when crossing the border, won't be able to prove that she has any ties to Canada. She doesn't work, she doesn't have her own lease... does she have any income or banking or anything at all in her name? I have been driving back and forth across the border for 3.5 years to visit my boyfriend/fiance now-husband. I have been fortunate enough to never be given a hard time but more-often-than-not I was asked what I did for a living and when I had to be back to work. My visits were no more than a few days at a time. Your almost-wife isn't in the same situation.
When you pull up to the border with a truckload of stuff saying you're moving, your almost-wife can't be stating that she's moving. Because she isn't allowed. If it were that simple, none of us would be here jumping through all the hoops we're jumping through.
I was also surprised when I found out how complicated it was going to be. I was shocked when I found out how long the "normal" processing times were as I had no idea until I arrived here on the message boards. Do NOT follow my timeline as an example because we have gone through faster than most as of late. Mine is not the norm.
You already know you're getting married. So get that taken care of and then start building your case for your application. There is a lot of preparation.
I apologize if my wording is harsh in any way but you have some stuff to think through and plan around because what you thought you might be able to do, simply isn't allowed. She must stay in Canada whether with you our without, other than her coming for visits. As Canadians we are often permitted to visit for up to 6 months BUT that also is usually only permitted after being able to prove that we're coming back to Canada. With you getting married, you moving, and her having no ties, that will be very hard to convince the border guard to be true. On the other hand you might just get lucky and they let her in. Either way, your case will almost definitely take longer than the 6 months maximum before to be complete, which means she needs to come back to Canada at some point. Does she have anyone to stay with during this time?
Good luck with whatever you decide. There's a lot of support here on the boards.

http://immigrate2us.net would probably be the better place to ask questions like that.

AnotherLostSoul is wrong. An I-140 is NOT an application for permanent resident status. If you were asked whether any immigrant PETITIONS had been filed on your behalf, you would answer 'yes', because that's what the I-140 is.

Just like you need a visa to live in Canada, your wife will need to obtain a visa to be able to live in the US. Filing a I-130 does NOT allow her to live in the US; I think that is getting lost here. The I-130 needs to be approved and she needs to go to Canada for an interview for an immigrant visa. The I-130 is just the first step and does not grant her any special anything by itself. She can visit in the US in the meantime, but her being married to you does not allow her to live in the US by itself.
If you go in a truck with your household belongings to the border and she does not have an immigrant visa, then yes, she will probably be denied entry.
There is no way to get your wife an immigrant visa without being separated for a while, unless you delay your moving back to the US for a year. Seeing as you already quit your job, I guess you are not putting it off for that long.

I believe they were asking because the OP used the term "partner", which didn't reveal - kudos to together4never13 for not following heteronormativity.
They were asking because the US government does not recognize same-sex engagements or marriages and family visas would not be applicable if the OP was in a same-sex relationship.
Actually, it's impossible to get approved because the US government does not recognize same-sex relationships. It's a federal thing, so it doesn't matter which state is involved. EDIT: on the K-1 or CR-1 visa, that is.

Only death and taxes are certain in life, not a visa issuance.

yes, the advice is to never lie to immigration

People change, unless there is abuse there is nothing to report

Nothing can be done to bypass or expedite AP, unfortunately all you can do is wait, and call DOS for updates. The embassy will contact you when hey want an updated medical, good luck.

Only death and taxes are certain in life, not a visa issuance.

1) Two fast marriages.
2) From Nigeria.
3) A CIMT.
You should consult with an experienced AILA-certified immigration lawyer asap.

The bar for an SB-1 returning resident visa is very high. You have to prove that not only was it never your intention to relinquish your LPR status, but that the circumstances that caused you to remain outside of the country for so longer were unexpected and beyond your control.
With the circumstances you outline, it's unlikely she would be able to meet such a threshold, but she is certainly welcome to try.