If you want to speak English, better look at Australia or New Zealand.

Only your wife can own the land. You can legally get a right of usufruit, a piece of paper prepared by a lawyer and filed with the chanote, that gives you the right of usage of the property until your death regardless of its ownership. So even if your wife sells the land in the future, you remain the rightful user. But at your death this right will be extinguished.

Colin Boyland this depends which immigration office you are reporting to. In Chiang Mai you do not need to file a new TM30 when you come back to Thailand, with an ongoing visa extension, to the same address reported previously. But I know that in some other places they insist that your landlord files a new TM30 whenever you come back from abroad.

Colin Boyland I am on a married visa extension and need to report every 90 days when I am in Thailand for more than 3 months. A few years a go I used to travel out and in every month, I never had to do a 90 day report, no problem.

The 90 days report is not linked to the visa or extension of permit to stay. It is linked to the date of entry. You have to report 90 days after your last date of entry. Every time you leave the country and come back the 90 days counting re-starts. If you travel overseas every 85 days, you never report 90 days. The online reporting works sometimes, and sometimes not, difficult to predict.

@Mark ********

Tessaban refers to the Tambon office (sub district). The house book is being issued by the Amphur office (district). Thais get a blue book, foreigners get a yellow book. The process to get a yellow book varies widely from Amphur to Amphur, very easy to very difficult. Usually they want to ascertain whether you have any intention to stay long time in Thailand, they don’t want to issue yellow books to people who disappear after 2 or 3 years.

There is no black and white answer. It depends on the person doing your check-in and on his/her supervisor.

I have had more than 800k with Bangkok Bank without any issues for 22 years. It’s perfectly safe and easy to use. But you won’t get a lot of interests on your savings account.

@Gordon *******

the marriage is already registered at the Amphur, but immigration still want the original certificate to be legalised.

As mentioned above, each branch will have its own rules. Statistically the easiest banks to deal with are Bangkok Bank and Kasikorn, and branches in areas with many farangs. Usually you need your passport and a residence certificate which you can get from the immigration, or a yellow residence book if you have one. Better go with your wife.