. From the small info you've given , there's only really one visa option for you it seems. A work visa, which needs to be arranged by whoever offers you a job first, then work permit off that. Thailand does prefer younger foreign teachers though for some reason . I know many who struggled to get new contracts or new jobs after 50. I know of 6, one a fame member, who all worked at international schools here, as soon as they turned 50 the schools lost interest in renewing contracts.
. Take no notice of him. I've lived here 7 years. More Thais speak English as second language than any other. Always been a high demand for English teachers here especially qualified ones. If you go down that road, make sure you get appropriate visa and a work permit.
. Google Malaysias version. Will probably mimic it. Takes 5 minutes online done within 24 hrs of arrival. Can do it airside in front of passport control.
. If you plan to use changwattana imm office in bkk for your extension, you will always get back your passport with under consideration stamp. I've done it there 7 times. Also the chance of getting a home visit in bkk is almost zero due to them processing about 100 a day. I've never had one in 7 years here. Even if they do, you don't really need to be there as they will talk to your wife/ neighbors to confirm legimacy of marriage. They also need to notify you in advance.
. Yes .I know now but .. I've done 7 extensions and never updated it. And imm have never said anything they ignored that but made a fuss about having original kor Ror 3.. I give up..
When we married, amphur gave both of us one ofeach . Also one of each in English. Imm wouldn't accept the English versions ..
. Then I need to ask immigration why the last 7 extensions that they wanted to see the kor ror 3 original every time.. and why they are ok seeing the kor ror 2 that I have never updated.. last 4 times the passport # on kr2 was also different because it expired and I replaced it 4 yrs ago.. They've also never visited our residence either.. so much for rules when they ignore them too
. I got a fresh kr2 today from district office for 10 baht. It just astounds me that they cannot reissue the kr3 too. Their answer was "only get one"