Well it does seem to matter because if the landlord is responsible how will we be able to file it without him being there? Everything I've read seems to indicate that if you dont own the condo/apartment the actual building owner needs to do the regiatration.
I would rather know now if I need to try and get something from them before I travel all the way to Chaengwattana.
I'll be going a lot sooner than that but someone else must have done an STV visa renewal with the future date for their full insurance and accommodation coverage and can confirm if immigration asked for all the relevant paperwork again.