1. get a green contract (total 4 copies) from hk immigration
2. signed by both party with supporting document (check w/phil consultant) submit to phil consult and wait for 5 working days (cost HK$297.50 + US$144)
3. collect the green contract from phil consult and submit to hk immigration + supporting document (check w/hk immigration) and wait around 4 weeks (cost HK$160)
no need to pass to agency that u can save $$$.
i did it 1.5year before, maybe the cost has some change. go luck!!
if the maid is terminate with special reason, such as the employer fin problem, the employer pass away or the employer migrate to other country) you can apply by yourself, otherwise, you need to pass to agency to handle for you. you can check with this link http://philcongen-hk.com/labor/main.htm
hope that it can help you