@Nathaniel ********
to apply for an in country Non-O visa based on marriage to a thai the financial requirements are one of these:
you show you have 400K baht in a thai bank account in your name only transferred in from overseas,
OR
you show a letter from your embassy stating you get 40K baht a month in income from abroad (if your embassy issues that letter)
OR
you legally work here and show pay stubs work permit etc that are more than 40K baht a month
OR
you transfer in to the country into a thai bank account in your name only a minimum of 40K baht a month each month every month for the previous year.
IF you have more questions please make your own post..