If it's at all possible for you, it might make more sense to move to a larger flat and keep your helper as a live in. By the time you pay for a decent quality living space for her (as those $1-2k bed spaces are grim, dirty, and often unsafe), you'll be adding $4-5k a month to her total compensation at least. Then you have the risk associated with the illegal live out situation.
My understanding from some friends recently looking is that live outs are asking $8-9k per month inclusive of salary, food allowance, and housing allowance.