How can I arrange a visa for my babysitter to stay in Thailand with my family?

I knew of one Norwegain guy (he was in his late 30s) on working visa in Thai, he had his own business in Thai. He hired a local (Thai) baby sitter, upon a recommendation from his countryman. Two daughters he had, 6 and 8 years old. The nanny had her own like self contained studio within the condo and one day a week off. She was on 500 THB a day, free food (she was purchasing and cooking) and no rent. She spoke English and was acting as almost like a wife (he said only the household duties and looking after the kids).

Myself, 2005-2008, we hired a nanny, a known person, employed as a cleaner in the condo building, 100 THB an hour, 3 hours week days, after her work, while my wife was attending her Uni lectures and exams. Our daughter was small but by then she could walk and no nappies.

The only chance (not a good chance) you have, is to find a domestic helper employment agency in Thailand. You can arrange for them to hire her and give her a visa, and then she works for you through the agency, with them getting a cut.