Can I obtain a work permit with a Non-O Visa based on marriage in Thailand?

AFAIK all Ministries of Labour will issue a work permit to someone on a visa or an extension of stay based on marriage.

@Mark **********

you can never renew any visa :/ You would either go to a thai consulate and buy a new one, or you would go to the immigration office and apply for a yearly extension of stay by meeting the financial requirements of

-400K baht in a thai bank account in your name for 2 months before you apply for the extension

-a notarized letter from your consulate stating you get 40K baht a month in income

-three months of pay stubs and tax receipts and documentation from the company you work for showing you have at least a 40K baht a month salary

Yes, depending on Thai Embassy or Consulate which requirements needed, Check their website.

You can't have both, or do the border runs every 90 days, last one on the enter before date of the visa to get maximum stay out of the visa OR apply for Extension and report at Immigration every 90 days.

Yes, you understand correctly. You can apply for Extension of Stay 30 days before Admitted to Stay date on every entry of you current Visa. As soon as Extension of Stay is approved you Visa will be invalid, you need to do the 90 day reports and need a re-entry permit when travelling to keep the Extension alive.

No, your company have to provide you with some documents, for example, tax and social security payments for 4 Thai staff and yourself. You need minimum salary of 40.000 Thb a month unless you are an English teacher. For the correct requirements you can just ask you company or visit with them the Immigration Office in your area. The Extension of Stay is for 1 year and you only make 90 day reports at the Immigration Office.