US Immigration from Cuba

I know it might be different depending on the country but i figured i would ask. My fiance has been collecting legal documents birth certificates, police reports, divorce decree etc...

Is it required for these legal documents to be notarized to be valid.

Fiance lives in Cuba if that helps.

I managed to get our date via the online chat but the letter may have been lost by USPS. I'm curious to see what it says you should bring.

We already got married and are now ready to file for change of status. any help is appreciated.

This is what the letter says: "NVC will now forward the petition to the U.S. Embassy or Consulate in Georgetown., Guyana. Please note that the transfer process can take several weeks. The U.S. Embassy or Consulate will contact your fianc (e)/spouse when they are ready to process his or her petition."

Is this their usual wording? Or is the "can take several weeks" due to COVID? I've heard usually after you receive that it only takes a week and then you can schedule your interview.

Also, I need to wait to be contacted to schedule my interview? That says my fianc will be contacted, but I thought I was the one that would be contacted.

Hello,

I'm currently awaiting a NOA2 and assuming all goes well it would be an approval. I understand that at that point our case would be sent to the NVC and eventually make its way to the embassy.

So my worry at the moment is that i would need to get my fiance from Cuba to Guyana for the actual interview at the embassy.

The issue that Cuba has extremely limited flights which are basically 1 round-trip per week from the USA. There are a number of things that would not be in my favor like not knowing the actual date that will be available, not knowing if i will be able to book a flight for the date of the interview.

So you can see how this can be a major issue if this was the case would i just need to keep getting the interview rescheduled until i could get a flight for my fiance from Cuba to Guyana?