You are probably best to hire a lawyer to help you with this. You need to be aware of the legislation. Your business must be 51% owned by Thai nationals. And that has to be a financial stake, not sleeping partners. You have to hire 4 Thais for every one foreigner. Also, the foreigner must be paid ฿30,000 a month (this may have been revised but it’s that last I heard).
So, is your planned business suited to that model? Have you got Thai investors?