We use a dog boarding, training and grooming company based in Phuket run by an English guy. There are a lot of foreigners living nearby, so I think it is a good business. Read up on setting up a business in Thailand. There are a lot of dog grooming places, but not a lot of people who do dog training. If you pm I can let you know more about their services.
Get a non-O visa before you come. You can't get it if you are here on a tourist visa. You can't open a bank account with a tourist visa. Get a Thai SIM when arrive. We rented a place for three months, as the bank and Visa office need to see your rental contact and your landlord needs to give you a TM 30 form.
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