They must have only changed rules recently, our insurance is in wife's name anyone can drive over 25 yr old as said I'm down as main driver aged 75 yr old.
Yeah kid hit my truck my Mrs told me his family very poor, so i got it fixed 2,200.
The mother did come to the house and apologize and worked on our farmland for nowt in payment.
Ask your local DLT office where you are going to have to go to anyhow.
If the seller is leaving Thailand best get POV from him while his still here obviously just in case you do need it.
If he needs it to be on 20 maybe he should clean the filters and he can't do it get someone to clean and check the aircon for gas.
Can't do much about 8 baht a unit used in a rented place other check someone else is tapping into his supply.