Why get an extension? Just get another 60 days tourist visa in the USA or visa exempt and extend again.

Eventually.

Equivalent in an Aussie bank works for Thai consulates in Australia.

Tod is the man! Always get a visa prior if you can!

See PM

If your foundation paperwork is perfect, you can get a visa anywhere in Asia.

Vientiane is always the suggested option because it is the closest and easiest and less hassle.

I don't know currently about Hong Kong, but it's like a 1% place, because most people don't choose to go to expensive cities to get their visas especially from Chiang Mai.

One possibility is trying since you are going to be there, and having Vientiane as a backup.

Down the bottom.

-Additional-documents-required-for-citizens-from-so.html

I thought Tanzania was always on the list of restricted countries from all consulates in Asia.

You can get an approval letter from the foreign affairs department in Bangkok. It only takes 3 weeks(actually 6-8 weeks)

Your organisation will "add" dependents to your foundation invitation/notary letter and your dependents will also get non O visa as your dependent when you apply for your visa outside Thailand.