Yes

Live here for a long time, pay income taxes, don't commit any crimes, and learn Thai language.

She could apply for a visitor visa like a regular tourist. No need to mention you (and doing so would likely hinder rather than help her chances of being approved).

@Stuart **********

sounds like alot of hassle for the sake of a holiday - surely the point of hiring an agent is to avoid reading the guidelines, indexing the documents, etc

Given low rental yields = relative value of renting; lack of planning restrictions = unlimited supply of new real estate; and poor construction standards combined with local preference for new builds = potential for rapid capital depreciation, it generally makes much more sense to invest your capital elsewhere and rent in Thailand - then you can move to a brand new condo project / gated community with new facilities every few years, and not worry about having your money tied up in a legally questionable investment in a country that, despite being amazing in so many ways, is still quite backwards in the rule of law.

Yes, as long as he has enough money in the bank or as income from abroad to meet the financial requirements for extensions of stay. But you'll also need to line up a back up wife, or two, in case of divorce / death, as that would affect his visa status.

Can use them in , the expressways, or vending machines.

it really depends on her situation - very easy if she has a good professional job, plenty of money in the bank, and a track record of global travel (especially to countries that require visas) or very difficult if she's poor enough that an immigration officer might suspect that she'd be better off working illegally in Australia as a waitress / masseuse / farm hand / etc

@Danica *****

If you're planning to stay long term, but you're not retired, you will need a job right? (so the visa will come through that)

@Danica *****

if you're just coming over for a holiday, you can get a multi entry tourist visa