After the initial 90 day after, move 400 to new bank. Wait a month more the rest. This way you keep 400 constant on deposit. I would not do all on the same day.
just use the expired thai passport. A few years ago going to USA, I didn't know her Thailand passport was expired, her US was new. The immigration officer asked if she had another valid travel document..aka passport. Have a good trip, use the expired on return no problem.
not according to the law, and it's not an initial 90 day, but a 1 year non o visa. I have one with about 16 17 extensions that was valid for 1 year from entry date. And once here I started using transfer method. Never had a problem, later used letter, until others destroyed that method, so made 2 transfers opened a new account with the 800k. So unless you don't obtain a 1 year visa in your home nation, you can use that method. I'm not talking about a border bounce visa, the full that includes medical and police background checks along with bank statements there in home nation. That takes a few months to do.
or you apply in a consulate in home nation where you can use banked money there for the visa. Then you could open account and transfer the funds for your first extension or do monthly deposits.
If you don't leave the nation, just travel internally for business, medical etc, I was told no need to do another TM 30 unless you leave. IE go meeting see Dr, a few days return home, fine. It's staying at a different private residence or exit nation and return you need to do tm30
True. However it caused immigration to be far nicer and asking for all sorts of stuff. Previously until some caused many problems it was a piece of cake with income letter, which was ended due to a few bad guys. So then the officials were under heavy scrutiny all the way up. 1st time, funds there in bank as required, but each x3 had to check every detail, map, etc, finally a supervisor checked, then to head there. Having our marriage document there, although nor required eased concern of their doing or missing something. A few in our community caused all this to happen which is sad. A lot is at officer discretion, or was.