What information does my wife need to bring for TM30 reporting at the immigration office in Thailand?

The TM30 is a report that landlords, or house owners, must file within 24 hours of a foreigner arriving at their property in Thailand. Since the landlord is unaware of this obligation, the foreigner may face issues if the TM30 is not filed. To file a TM30, your wife (the tenant) will likely need to go to the immigration office with relevant information, which could include her ID, the lease agreement, and the landlord's details, although some provinces might allow online filing through an app. Since you're visiting for only 30 days, you may not need to worry extensively about the TM30 unless you plan to interact with immigration services.