Can I extend my NON-O marriage visa for 90 days by crossing the border and re-entering Thailand?

@Denny ***********

nope, you can't get another 90 days by exiting and re-entering and you can't get a Non-O visa from any thai consulate in nearby countries either. :/

You have to go back to your country and get a new Non-O visa,

OR

you have to apply for a yearly extension of stay at the immigration office by showing the 400K baht in the bank for 2 months before you apply or a paper from your embassy stating you get 40K baht a month in income

OR

you could get a 60 day visit family extension for 1900baht at the immigration office too.