I replied to another person who talked about his friend using a PI to check upon his gf.
Why don't you read properly who it is addressed too and be more specific for what reason YOU need a PI.
My wife runs a couple of businesses and I work, we want to make enough, so our kids never have to worry about money and don't have to look for the cheapest baked beans or worry about the price of eggs.
The guy is a joke, who doesn't know the first thing about doing business in Thailand and will lose his money.
Not the first and certainly not the last.