There's no point in going to Hong Kong for legal studies. There are too many law schools and too many law graduates in Hong Kong, and the job market has already been more or less saturated.
It's not as easy as you think to find a job there. Moreover, English standard will be a huge obstacle. It is too risky to devote 3-4 years into studying law in Hong Kong which ends up nothing.
Many Hong Kong law students can't even secure a job in the field. Do you think you will be more fortunate than them? Absolutely not!