What is the process for moving to Hua Hin after getting a marriage extension in Chiang Mai?

it is to simple to explain.

If you like to live in another house, another province, another condo, what ever. You pack your bags, you load up your belongings and of you go.

At the new address the ONLY thing you have to do is make sure you get registered at the Immigration Office that serve that area.

It is called the address registration, or populair by expats the TM30 form.

That is it, unpack, relax and enjoy your new surrounding, the rest of the rules about 90 days in Thailand, apply for a new Extension etc are all the same only need to be done at another office

>. If I make an extension based on marriage in Chiang Mai, and then I want to move to Hua Hin, what process should I follow

I believe you would simply file a TM30 no later then 24 hours after you arrive at your new location.

Maybe he has moved to a different province, so new immigration office.

I guess is that you moved to another house or property and the house owner, land owner, house master of possessor of the house has to report you within 24 hours after arriving that you reside on that address

you can not move from one Immigration office to another Immigration office.

What was your old immigration office, and where is your new immigration office?