my bro in law wants to have his car repainted a different color, but then he's abroad so im not quite sure how to go about processing the papers at LTO. will his appearance be required or can i process the papers for him or will an authorization letter do? are there any car shops that can assist me in the processing of the registration.

registration of the car btw is due by january, but i know we need to process the changes at LTO.

please i need answers asap as he wants to have the car painted this september.

thanks!