US visas (I mean, for people who need one) can always be used even in an expired, void or damaged passport, as long as the visa itself isn't expired nor damaged.
No, not always. I don't know the specifics about Thailand, but many other countries do legally execute divorces for marriages done or registered in other countries.
Normally you won't upload those, just have them ready. If they ask for those, then you upload it on the additional documents menu, which you won't be able to see unless they request for extra documents.
Hello, welcome 🎶 I chose the laughing reaction not because of you, but because it seems it is like the first or one of the first times they see a DTVer down there.