@Bennett *******
i mean he would have to TALK to them to see how it would be done. many times they have the person exit the country to get OFF their "retirement stamp" come back in "free entry" (visa exempt) then apply at the immigration office for the 90 day Non-Immigrant Visa for 2000baht
OR
they give documentation for them to go to another country and apply thru the thai consulate there online for the 90 day visa.