If he is under 50 them the retirement Non-O is not an option but married to a Thai or father to a half-Thai child are his options but the paperwork is greater
You need to pick the correct Purpose of Visit - in your case Pensioner staying no more than 90 days (where it states Visit Thai Family here) - you selected Non-OA long term stay
Is same sex marriage recognised by Immigration now? I thought it was only some Embassies and Brandon was referring to foreign wife/Thai husband marriages.
You will need a ticket to enter Thailand, one to leave within 60 days then another ticket entering Thailand when applying for your METV as proof that you need one
The OP is not on the original 90 day Visa but is on an Extension of Stay which has conditions which says if your circumstances change you have to inform Immigration so the EoS gets cancelled alligned with the cancellation of the WP. Failing to cancel an employment EoS results in a fine of up to