What is the cheapest and easiest way to obtain a 1-year renewable multiple-entry retirement visa in Thailand?

The easiest and cheapest way to obtain a 1-year renewable multiple-entry retirement visa in Thailand typically involves securing a Non-Immigrant O visa first, costing around 2,000 baht, followed by an extension for 1,900 baht and an additional 3,800 baht for the re-entry permit. Applicants must also have 800,000 baht in a Thai bank account for at least two to three months before applying. While some recommend using agents for assistance, the costs can vary, and it's suggested to assess whether to do the process yourself or enlist an agent, taking in account their service fees. Discussions indicate that following the proper legal channels, even if not the cheapest, ensures long-term stability and compliance.