As things stand that's exactly correct, just avoid going to immigration for an extension

What do you mean by "another" dtv? The dtv hasn't been around for long enough to require another one

Did you supply one or other of these required documents to allow you to apply via that consulate?

Valid UAE Residence Visa (for those working, studying, or as a family member of a UAE citizen) or

Valid UAE’s Resident Identity card (Emirates ID)

@Andi **********

but he needs to be in the US to apply there doesn't he?

You have to apply using the consulate that serves your current location so if you're in Ethiopia you can only use the consulate in Nairobi. How it works is that you apply for your DTV and once it is granted your wife and kid then each apply quoting your DTV approval and providing proof of marriage and parenthood. They also apply using the consulate that serves their location. Note that you can't apply via any of the US consulates if you are physically in Ethiopia

@Robert *********

go to your local revenue department office

I'm guessing you need to leave the country because you either don't have a bank account or don't have long enough left on your stamp as I'm pretty sure Hua Hin can do in country visas. You can just leave to any nearby country and apply for a 90 day Non-O visa based on your age. Your wife would need to apply for a 90 day Non-O visa as your dependant, however many consulates will not issue this based on you being on a visa based on your age, you can try but don't be surprised to be refused. Some consulates will issue it based on you being on a Non-OA visa but you can only get this in a country where you have an official right to reside such as your home country.

You don't pay tax in Thailand until March next year assuming any is owed. Unless of course you own a business in Thailand.

@Martin *************

I questioned it because I know when the law changed that immigration did not change. It appears they do now accept it which I wasn't aware of.

@Martin *************

yes they are but I'm not aware of immigration offices inside Thailand accepting same sex marriage for the purposes of obtaining an extension of stay. I would check with your local immigration office where you will live in Thailand and that you will apply for the extension of stay at.