NEWS on updating TM30 in Chiang Mai -
If you return to Thailand and are living at the same address, you do not need involve your Thai landlord in updating your TM30.
Immigration will simply 'update' /'refresh' your TM30 for you without landlords help.
This was my experience June 2023 and the same for two others with me. You never know when things can change, but just thought to update.
TLDR : Answer Summary
Recent experiences indicate that if you return to Thailand and are residing at the same address, you may not need your landlord's assistance to update your TM30. Immigration offices might update it on your behalf, according to some users. However, official rules state that you are required to update your TM30 within 24 hours of returning. While some expats report informal leniency at certain immigration offices, it ultimately falls on the individual to ensure compliance. Conflicting experiences and regulations suggest that landlords may not be involved, but this can vary by case.