I would advise moving here until your daughter is off to college. You're looking at 10-20k usd a year for private school. I am not even mention about the many disadvantages that she will face growing up here. Thailand is no place for a family unless you sre the Uber rich.
I rode my bike today and observed all those violations. I saw a traffic cop on his bike and two Thai guys without a helmet in front of them. Nothing was done.
You're not the first farang to buy their lady friend a house. For a purchase this big, use a wire transfer. Just write down it is for her to buy a house.
Dammit, the mainland Chinese always ruin it for everyone. I am Chinese American and I feel I might be associated by these chain smoking, rude, and belly showing mainlanders.