Hi, 2 friends will be coming from HK on visa exemption to stay with me for 5 days. Do I have to file in the TM30 for them? If I don't, will be have problem at the immigration when they leave the country?
TLDR : Answer Summary
The TM30 form is required for any foreign nationals staying at a residence in Thailand. Since your friends are coming on a visa exemption for a short stay of 5 days, you should file the TM30 for them to avoid any potential issues with immigration when they leave the country.