What are the requirements for obtaining a residency certificate from Immigration in Thailand?

Recent experiences regarding obtaining a residency certificate from Immigration in Thailand indicate varying requirements based on province. Generally, obtaining a TM30 form is essential, and for some locations, a formal lease agreement might not be necessary. One user highlighted that in Hua Hin, a simple one-year leasing contract sufficed, along with scans of passports and landlord ID. The timeline for obtaining the certificate can be quite quick, often within days once the necessary documentation is provided.