My Thai wife and I (US citizen) will be retiring to Thailand next year...I will be looking to eventually get a Thai Marriage Visa...I understand the process is to 1st aquire a 90-day or Non Immigrant O visa, then eventually the Marriage Visa...If correct, where do I apply for/aquire the 90 Day or Non Immigrant Visa, in Thailand after arriving or in my home country before arriving ? Thank you in advance for any information..