My practical advice is to get a lawyer who specializes in international business to cover your butt. If they say it's something that you can legally agree to, t

My practical advice is to get a lawyer who specializes in international business to cover your butt. If they say it's something that you can legally agree to, then you should also get a lawyer familiar with the laws of the Hong Kong SAR, preferably a bilingual one fluent in both Mandarin and English... or possibly trilingual, depending on how much Cantonese you'd be dealing with.