I’m 64. All I have is my Social Security check I get for $633 a month. I don’t have any other assets. I know a Thai woman who owns a small business, a coffee shop. I want to marry her and live there.
You have 2 options in order to stay long term in Thailand. As you have plans in marrying your Thai girlfriend, you may apply for a Marriage visa. This type of visa is applicable for those who are legally married with a Thai national and has met the financial requirements of either 400,000 THB in a Thai bank account, monthly income of 40,000 THB or combination of both.
Foreigners as well who have reached the age of 50 and above may also have the option to apply for a Retirement visa. Financial requirements is a lot higher than the Marriage visa which is 800,000 THB in a Thai bank account, monthly income of 65,000 THB or a combination of both may be used for this application.