any time anyone is in Thailand for 90 consecutive days they file a 90 day report. The visa doesn't matter. You would do it at your local immigration office with your passport and a copy of your TM30 filed by your hotel or landlord.
It can work. It depends on the immigration office. Some want to see a lease for a long term extension, and your TM30 would have to match the address on the lease. Suggest you go to your immigration office and ask them for their handout of requirements for a marriage extension, so know what you need and how to plan.
it requires your passport information to register you. But you only need a TM30 if you'll be using immigration. Are you staying for a long time and will need to apply for an extension? If not then don't worry about it. If yes then you'll need to get a TM30
I wasn't answering you. I was answering the comment I replied to (you can see the name I was replying to at the beginning of my comment). Look at the user guide for TM30 if you are having trouble. They have guides and videos in english
TM30 is a legal requirement for all property owners in Thailand. ALL foreigners must be reported as staying at a location within 24 hours of arrival. Visa doesn't matter. Anytime you go to immigration for anything you will need a copy of the TM30 that the owner filed for you or you will get fined.
search is for searching for an entry you already made within the last 7 days. After you've already submitted the TM30 you will then search for it and then click the export button to get the PDF.