US Immigration from Canada

So I'm definitely not like most lol - I filed for the K1 Visa in August of this year.
For background, I am the petitioner - Male, I filed for my beneficiary in Canada - female.

Now for the odd-ball situation I'm in. My parents never married, they are still together (I believe they filed Domestic Partnership). I have my mother's last name and not my father's.
I have been wanting to do a last name change to match that of my father's plus my wife-to-be wishes to have this last name also.

Now, for the question you may not have the answer too.
I, the male - should I initiate the court proceedings now to get a legal last name change or should I wait until after the K1 is approved, get married and do a name change and my wife would also have to do the same - essentially a not so "bang for a buck" idea haha.
Really what I'm trying to figure out, is if I can do a last name change now and send the documents to USCIS as an "update" to my name.

• I am in California so I cannot put my father's last name on a marriage certificate because... California doesn't allow it cause I'm not "associated" even though my birth certificate says otherwise but hey! whatever, its the gov't lol. I wish I knew this sooner cause I would've updated it prior to filing...

Is there possibly a way to reach out and find this information out from USCIS? I have tried googling but unfortunately I'm the minority here ... since I'm a guy...

tl;dr - male petitioner wants to change last name but already filed K1, can I do court proceedings to change legal last name or should I wait?

I don't want the K1 Visa to be null and void for something that I see as submitting as a simple update/supplement.

I reside in Alberta and I think we made a mistake on our I-129F but wanted to ask you guys here what your thoughts are.

We put Montreal as our consulate because I thought I read that Vancouver no longer processes K1 visas. Looking at it again, I see it says they no longer process K3 visas.

Did I make a mistake, should we have put Vancouver?

If yes, is there a way to change it?

Truthfully I'm just looking at cutting down processing time where I can (but let's be real, I can't haha). I would prefer Vancouver because of the flight and I'd have a place to stay with family, but at this point I'm not going to sweat it too much.

Thank you for your time.

Hello,

I am the beneficiary from Canada and my partner (petitioner) is in the US. We are June 2022 filers and received our NOA1 on June 3rd, 2022. Our payment was already cashed.

My question is - we filled out question 38 on the i-129f regarding the i-94 even though I had LEFT the United States when my partner filed our petition. We did this because we followed the instructions packet very closely, in which it stated to provide the date of the most recent i-94. We must have missed the actual sentence on the form that said to fill it out if the beneficiary was currently in the US.

I have been looking at many, many different posts and have come across how others have had the same issue and were also confused by this. My question is, has anyone been accepted by providing the i94 despite the beneficiary not being in the US? Will this cause a major problem?

EDIT: Please ignore this topic. I do not know how to delete it. I have found a thread regarding this topic, found here for anyone else that may wonder:

Hello kind people of the forum,

My fiance is in the process of completing the paperwork for our K1 visa application submission. We noticed that when we printed out the I-129F, the bottom barcode does not print out.

Has anyone else had this issue? Are we doing something wrong?

Will this affect our application in a negative way, aka, it gets rejected?

Thank you for your time!

Hi

My Fianc e just received our approved K1 Visa in the mail!!

I had some questions regarding the package itself

1) On the State.gov website it states not to open the "sealed package" My question is the package inside the package i received in the mail or am i not suppose to open the package at all (in picture)

2) I know the Issued K1 visa is valid for up to 6 months and upon entry we have 90 days to get married and apply for AoS ect. So does this mean that if the issue date was March 4th 2022, and i enter the states on June 4th 2022, does that mean that there is only 3 months left of validity of the Visa upon entry? The reason i ask is because i would like to stay in Canada just a little longer to save up as much money as possible before entering the USA to get married and stay with my wife while we apply for AoS. I'm just not sure if it's wise to stay in Canada to save more money for another 3 months or if i should just pack my bags and head down asap.

Any help would be appreciated.