sorry I answer so late, I saw notification on the app and forgot about it. In this post you can find what we had when going to Vientiane:

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Hi

@Ka***

! In Vientiane it worked perfectly. This is how we wrote the declaration:

"Declaration

SCHOOL hereby declare that NAME, born XXX, passport no XXX

is suitable for stay in Kingdom of Thailand based on the fact that he is a spouse of School’s employee

NAME, born XXX, passport no XXX. We kindly ask for granting

NAME a Non-immigrant visa “O”.

Sincerely,

SCHOOL"

We had it both in English and Thai but I'm not sure if it was necessary. Also I had her employment contract and our marriage certificate. We went together to the Embassy and gave our papers at the same time so they could compare it. They asked us few questions, it took a little longer than with other people, but I got my non-O next day and my wife got non-B.

thanks a lot! Unfortunately school administrator doesn't know that, I'll just take the documents mentioned in my post and will see if it's okay.

@Tod ********

One more question, should the letter be in Thai or English? Or maybe it doesn't matter?

is there any form for this letter or the school can write it on its own?

ok, I will try that. I'll get you know if that worked

ok, thanks! If they will reject my Non O, there should be no problem with getting regular tourist visa?

She's going to Thai consulate in Vientiane, me too (just I don't know if I should apply for Non O or tourist visa)

thank you guys, I'll try to explain her that this is important. You are really making this group the best one for expats in Thailand!