Giorgio Bisson do not listen to anyone that has commented, as most are talking BS, as they aren't listening to your plans. Come into Thailand, and get married in Thailand. Doing it here saves a lot of translation requirements of documents if you get married in some other country. It involves getting a notarized right to marry document from your embassy here in Thailand. After you are legally married take your documents, copies of your wife's Thai id card, copies of the housebook she is listed in, and copies of your passport, to a neighboring country and apply online for a type O 90 day visa based on Thai wife, then when you get it re-enter Thailand, and immediately get a Thai bank account in your name only. As soon as you have this account transfer bt400,000+ into it. Go with your new wife to immigration and get the list of documents needed to apply for your one year extension after the money has been in your account for at least 2 months. I've had this extension for 10 years. This first time it is time consuming getting all the documents, but in following years, if you keep copies of everything, you only need new updated bank statements, and pictures. Everything else is the same, unless you move. You want to be on the type O extension based on Thai wife, as on this extension you can get a work permit without having to change visa extensions. Then by jointly owning the business with your wife the requirements for you to get your work permit are cut in half. You only need bt1million in registered capital in the business, and you only need to hire two Thai employees, one of which must be a licensed Thai accountant. If your wife was to set up the restaurant solely in her name then she would be required to have bt2million in registered capital, and have at least 4 Thai employees on the payroll in order to sponsor your work permit. Also, by working, and making at least bt40,000 a month for at least three years, and paying Thai income taxes, plus some other requirements (that mean nothing if you don't legally work and pay taxes), you can apply for permanent residency, or directly for Thai citizenship. Something to seriously consider. You can not do any of this on any retirement visa extension. You can't even work for free in the business on retirement extension. One thing to remember in any retail business, is that vending is a restricted occupation, meaning that you can not legally take any money from a retail customer. Other than that small detail, this is the best way to go about realizing your, and your wife's dream of having the restaurant on Koh Chang island. I live in Bangkok, and that is my favorite island to go to. If you have any questions I am a consultant, and happy to help for free, with what I can help with.