What forms do I need to submit for renewing my retirement visa in Thailand after buying a condo?

To renew your retirement visa after moving into your newly bought condo in Thailand, you primarily need to submit the TM30 form, which is required for notifying immigration of your new address. Make sure to bring the title deed (chanote) for the condo with your name on it. It's also advisable to ask at the office if you need to file a Change of Address form (TM28), although many offices now primarily use the TM30.