We own a condo - in the building we had been renting in. It's an older building, with solid construction. I think the smartest thing is to rent first & see what's available to purchase in the areas that you like. Some buildings may be as others described here, poorly constructed, falling apart. (Newer ones tend to be that way.) Others may be better. Also - we did not buy a condo to make a profit, we bought it to live in. So not overly concerned with how much, if at all, it appreciates in value over the years. We're in Bangkok, the price was very reasonable compared with most major cities around the world.
Not sure where they'll need to send theirs - perhaps a Thailand embassy in the city where they were married? I believe authentication is just to verify that the certificate is real.
Not Thailand, but similar situation with authentication of marriage certificate: I'm an American married to a Taiwan citizen, which does require authentication. Having our marriage certificate authenticated required sending the original certificate to the TECO office (sort of like a Taiwan embassy) where we were married in the U.S. They have it authenticated with local authorities where you were married, & then send it back to you. Basically, it needs to be authenticated in the U.S. Can't the U.S. embassy here advise them how to get this done? (But you do not have to go there, can send documents.)
Ah, we moved to Bangkok about 18 months ago, mid-pandemic. From these comments, it's clear that the relatively quick turnaround we've experienced at immigration was simply a lull. Seems that lull is over!
Yes, that's the way it works here. Friends referred us to their real estate brokers - but they were only able to offer listings they held. So when we decided on a certain neighborhood, we searched out buildings, & contacted whoever was handling that listing. Weird to westerners, but that's the system here. Your cannot just ask your agent to find you an apartment in X building, you need to contact whoever handles leasing in that building.