@Fah *******
thank you for your update, that is exactly how it works to get the 90 day Non-O issued in country and the year extension after that
you come in visa exempt or tourist visa
you get your funds sorted out in a thai bank account in your name only
you apply for the 90 day Non-O visa when you have between 15 and 21 days left on your current entry stamp (for 2000baht)
you wait for the under review period
you go back get the Non-O visa and a new 90 day stamp inked in
you wait 2 months until you funds are seasoned
you go back to the immigration office and apply for the year extension (for 1900baht)
you get an under consideration stamp
you go back when that runs out and get the year extension based on marriage inked in