What documents are needed for a Non-B visa extension and work permit extension, and can this be done without a lawyer?

To extend a Non-B visa and work permit in Thailand, you'll need specific documents, typically including proof of employment and other requirements defined by your local immigration office. While it's generally possible to handle the process without a lawyer, many expats find that assistance from their employer's administrative staff can streamline the process. Additionally, fees may vary depending on the office handling the application.