What is the procedure and required documents for obtaining a Thai married visa?

To get a Thai married visa, you can first apply for a 3-month NON-O visa, which can be done at a Thai consulate. You will need various documents, including copies of your passport and your spouse's ID card, a signed rental agreement or a TamBien Baan, financial proof (400,000 baht in a Thai bank account for at least 2 months), photos of your residence (both inside and outside), a hand-drawn map to the immigration office, and your original marriage certificate along with two copies. After securing the NON-O visa, you can apply for an extension based on your marriage, ideally two weeks before the visa's expiration. It's also suggested to consult in expat groups for assistance.