the 60-days tourist visa actually will allow you to stay for 90 days, as you can extend it for 30 more days on Immigration. And this means it will give you the needed time to deposit the 800,000 THB in Thai bank account in your sole name, and apply for the in-country 90-days Non-Imm-O visa based on retirement, from which you can apply for the yearly extension of stay permit based on retirement . The requirement says that the 800K Baht must have seasoned in the account for two months on the day of application
he is Estonian, he needs to check if his embassy in Thailand can certify his monthly income. With the embassy letter he can get the "1-year extension of stay permit based on marriage with a Thai" using the yearly income method. If his embassy is issueing this letter, he does NOT need a bank statement over recent 12 months
be advised, as a German you can enter visa-exempt, receive 45 days admitted, spend 15 days in quarantine, and can extend for 30 more days. You also have the choice to apply for a 60-days single entry tourist visa, which you can extned for 30 more days. . . . . the ability at the moment for tourists and others , to extend the stay beyond , by applying to the 60-days Covid109 extension, might be limited regarding on how long the Covid extensions will be handed out
Then there is no guessing. For the 90-days report she can visit Immigration up to 15 days before or 7 days after the date which is stamped into the receipt. Just follow what this receipt says, and she won’t be fined again