You mean street address? I think most foreigners living in Thailand are in apartments. I live in a house, but it seems like I'm the exception to the rule.
Many people have Thai bank accounts including me. I'll be showing the funds on my Thai account but I'm also bringing along multiple foreign account statements to show invoices/salary/wages being paid to my foreign accounts.
Sure. Makes it easier because the amount you need is based on THB thus no need to convert or put an extra $1000-3000 to cover unexpected exchange rate losses or poor exchange rates used by the consulate you're applying at. I don't think anyone is looking for where the money is coming from; you could simply show that funds (from wages/overheads/salaries etc.) are being credited to a foreign account but they're not going to ask how the funds arrived in Thailand.
Yeah I agree with you, I prefer direct flights too where possible but depends entirely on where you're going. Chiang Mai doesn't get very many international flights, but it's good that you can fly to Taiwan direct.
It's a marginally longer flight than from Bangkok, but obviously if you had to fly down to Bangkok first, it would end up being a lot longer, taking into account the time in transit.
Cool. Yeah Air Asia ex Bangkok (probably Don Muang now) may well be cheaper but like I said earlier, the price difference may not be worth coming down to Bangkok for.
I think you got a good deal, as it's obviously a lot cheaper than EVA Air.