After some advice on TR60 extension in Chiang Mai. Can an extension be had in CM at anytime during the initial 60 days or do they have a requirement to wait for the last week like some IO's. Any other quirky requirements for extention other than the "usual". Will be passing through next week on a road trip and would prefer to get extended sooner rather than later so I can forget about it. TIA.
TLDR : Answer Summary
In Chiang Mai, you can apply for a TR60 extension within 45 days before your current stay expires. It is advisable to wait until you have completed at least 15 days of your initial period before applying. Common requirements include a TM30 address registration on file and conversion of your proof of TM30 to the appropriate form at the immigration office. Unlike some other Thai Immigration offices that only accept applications during the final week, Chiang Mai offers more flexibility.