There are two things that can happen.
1 - when you apply for your extension of stay you will NOT get the extension but instead get a 30 day under consideration stamp that gives you (or your land lord) 30 days to file a TM30 then you take the receipt back to the ED visa section and they will give you the rest of your extension free
OR
You take a copy of your lease, copies of your passport and a filled out TM30 and YOU file it yourself (you WILL get fined 800 baht)
This post tells you how to self file a TM30 without any documents from your land lord. FOLLOW it ;)
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