@Terry ******
To get a one year extension of stay based on marriage to a Thai wife, you'll need the following money:
1. 400K THB in a Thai bank account IN YOUR NAME seasoned for 2 months OR;
2. 40K THB a month in income (domestically) OR;
3. 12 consecutive months of a deposit of 40K THB in a Thai bank account, OR;
4. A letter from your embassy saying you make at least 40K THB a month (note: The US government does not issue this letter).