I came into Thailand this time on a tourist visa, Internet was to slow on our ship to get my marriage visa done.
My question is can I apply for a marriage visa now when I am here.
My guess is because I have a visa already cannot start a new one until it ends.
Thanks
TLDR : Answer Summary
You can apply for a marriage visa while in Thailand on a tourist visa, but you need to have between 14 to 21 days left on your current stamp for the application to be processed. It's recommended to apply for a 60-day extension if your tourist visa is running out, and you will need to meet specific requirements such as having a minimum of 400,000 THB in a Thai bank account to qualify for the marriage visa.