I think your post is unclear. Do you currently have a non-O? What do you mean by “convert”? Extend? Switch from marriage to retirement or visa versa or something else entirely?
How many times do we need to say that he did not say “land”. One of the options for an LTR is to invest in “real estate”. That includes condos, which are perfectly legal, and common, for farang to buy.
As Brandon said, any advice depends upon your current stay, whether you’ve had any extensions and your passport. However, most likely, since you didn’t mention any extensions and assuming you have a passport with fairly generous privileges, you can simply go to immigration (he must go in person as well) and get an extension. If you have already had an extension, then you’d need to get a medical extension with documentation from the hospital.
The first step is to check the Thai immigration website to see the policies for extensions for your passport.
I’m not sure where I stated “categorically” that you were wrong. I said that CURRENTLY, one can apply for a non-O through the consulate. I specifically said that I don’t know what was the case in 2004 (actually, I said “a decade”, because you said you tried again “years”, with no specificity, later) and that there was no way to really check that at this point. You seem sensitive.
There is no Thai embassy in LA. There’s a consulate. You would have no problem now. There’s no telling what the issue may have been a decade ago. I applied for two non-O visas in the U.S. last year (the second because my passport was stolen and I was given bad advice by the Thai embassy in Japan 😂). I proved funds in the U.S. then needed to show the transferred funds when I applied for my extension.