Here’s a link but as with all things Thai check with the embassy you will be filing with or the Thai immigration office you use because things can change on a dime
Must be from a company that is on the Thai governments approved list. They all issue policies that specifically cover the minimum requirement and will issue a certificate to the effect.
Store a copy on your phone AND carry the original any time you return to Thailand
Register your marriage with the appropriate amphur
Make sure you keep your assets yours. Keep money offshore and just set up regular transfers from your offshore account to your Thai account.
Thai law is designed to look out for Thais. Sure you can share a lot but it’s wise to as much as possible keep your assets safe. Share living expenses of course but not your core wealth
Check the Thai embassy site for nationalities allowing visa exemption. Then she’ll get 30’days most likely with one extension allowed. If you’re thinking of her working her - ain’t gonna happen
Leave the furniture behind. Leave as much as you can behind and buy it here.
Hire a company that specialises. They will likely include a small facilitation fee for customs and even if you are relocating some items will still be dutiable. Do not even bother with alcohol. Drink it before you leave.