Thanks. I’m always fascinated why people plan to overstay. Or why they don’t stay 27 days like, not 30. Many Americans don’t realize the day of entry is day one, and they forget about 31 day months.
Nobody in Chiang Dao will have any idea of what you are talking about re TM30. As long as you lodge a TM30 when you move to Chiang Mai you won’t be fined. It is required within 24 hours but there is a 7 day grace period. If they want to fine you they will and it is 1600 baht.