Have you ever run a business?
What do you know about running restaurants?
Do you speak Thai?
Do you know anything about Thai law?
If they are all answered by "No" forget about it.
Where in the UK do you live? The weather is not one of its favored attractions. Does she work? Have any friends?
Looks like she is bored out of her mind and misses family and friends. Ever thought about that before you brought her to a strange country?