you need to apply through the thai embassy for the country you are physically in at the time, if they use the online system use that, if they don't go in person. There is no thai embassy inside Thailand. If you want to apply inside Thailand you do so at immigration but you'll need to get off your current extension and return on either visa exempt or on a tourist visa to do so
you could ask immigration? As far as I'm aware you are meant to use that rather than the monthly transfers if it's available and immigration themselves can require it if you try to bypass the embassy
As long as you have the money in the bank and can prove that you can leave the country close to the expiry date and either apply for a 90 day non-o visa based on marriage and return after its granted, or return visa exempt and apply at your local immigration office
What passport do you hold? If it's from a country where the embassy in Thailand still issues an income affidavit/certificate then that's where you go. You prove your income to the embassy and they issue a certificate you can take to immigration.
If your embassy doesn't issue a certificate then you need to put 800k baht in a Thai bank until your 2nd extension. From that point forward you can change to 65k baht per month income provided you can show international transfer of 65k baht minimum each and every month for a full 12 months prior to applying
Depends if your taking the photos/videos inside Thailand or are you taking them elsewhere from inside Thailand. I don't understand how a photographer could work remotely
Without a history of freelance work where you can show your clients, possibly that you have paid tax, have registered with authorities as freelance etc workation is going to be difficult for you. I'd suggest that one of you applies using soft power and the spouse applies as a spouse once that is granted
Maybe. Check with your local DLT office, some require you to be on a Non-immigrant visa. If they do then you will also need a residence certificate and a medical certificate. You will need to take some reaction tests. You might also need to watch a video and take a multiple choice test.
agree on the cash pre 2024 but you need to be able to prove this if asked Best if you have it in a separate account but at the very least have a snap shot of your account at the end of last year.
As to stocks, you can't separate out the stocks from the gains. The only way to send stocks without gains is to use stocks that you will sell at a loss.