What are the requirements for applying for a Non-O visa in Thailand while on a family extension?

The conversation revolves around the requirements for applying for a Non-O visa in Thailand while currently on a 60-day family visit extension. Key points discussed include the necessity to show proof of regular monthly income (at least 40,000 baht) transferred from overseas into a Thai bank account, typically for a minimum of 3 months, with some immigration offices potentially requiring 6 months of transfer history. Essential documentation includes a bank statement showing foreign deposits, marriage certificates (if applicable), and possibly additional items such as insurance confirmation and pictures with family. Participants also highlight issues surrounding different immigration offices' requirements and suggest visiting the local immigration office for clarifications. Those in similar situations share their experiences and caution against making interbank transfers within Thailand, emphasizing the need for clear proof of foreign origin of funds.