Thanks
@T**
, I've looked at the relevant page:
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-Non-Immigrant-Visa-%22O%22-(For-the-purpose.html
This is not an option as I am separated from my Thai wife and she will not assist with the following requirements:
5. A copy of Thai house registration of spouse/parent or child
6. A copy of Thai ID card of spouse/parent
7. A copy of passport of spouse/parent