What is the process for extending a retirement visa in Thailand if my spouse's marriage certificate needs to be translated?

@Tod ********

- Just to close the loop on this... I completed a family affidavit (the marriage declaration section), got it notarized at the US Embassy in Bangkok, and that satisfied the Hua Hin Immigration Officer. They didn't care one whit about my original marriage cert from North Carolina, just the affidavit. Of course, I had all the other extension documentation in order even before.

I could have saved a trip to Bangkok if I had understood the marriage declaration requirement because I had to get the income affidavit done anyway. I could have covered both items with one trip and one appointment. A note for others, though: you can get more than one document notarized with one appointment, but the Embassy does charge a separate notary fee for each document.

The immigration office kept a copy of my notarized family affidavit for their file, but they returned the original. They said it will serve every purpose from now on.

My wife is a native of Brazil, but is also here on her US passport. We presented a marriage cert copy in the US for our original O-A visas, and a couple of times here for residence registration. The translation was recommended by the agent in Hua Hin.