>.what documents do I need and if she sents it to me can I fill the form myself or does she have to fill it herself.
You will need the TM30 form, OR for your landlord to use one of the applications.
Online [best option]:
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Apple:
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Android
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I *DO NOT* know if Samut Prakan allows self filing of TM30.
IF you are staying at an apartment with a lease, or a hotel, the landlord should be able to do it. If you are staying at an AirBnB, don't expect them to file a TM30.
You can have your landlord watch the following video made by the Thai government about the TM30
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>Anyone been asked to do a TM30 when going to apply for extension on visa exempt ?
It is a document that immigration can ask, and there has been lots of reports of immigration asking for the TM30 when applying for a 60 day extension of stay based on unable to travel due to COVID-19