Here are some links that may be of assistance to you:

How to Apply for a Business Number:

http://www.cra-arc.gc.ca/tax/business/topics/bn/register/menu-e.html

How to Register with WSIB:

http://www.wsib.on.ca/wsib/wsibsite.nsf/public/EmployerRegisterWSIB

Canada Revenue Agency - Payroll:

http://www.cra-arc.gc.ca/tax/business/topics/payroll/menu-e.html

Canada Revenue Agency Payroll Deductions Online Calculator:

https://apps.cra-arc.gc.ca/ebci/rhpd/startLanguage.do?lang=English

Blue Cross Health Insurance:

https://www.useblue.com/index.en.html

Citizenship and Immigration Canada - The Live-in Caregiver Program:

http://www.cic.gc.ca/english/work/caregiver/index.asp

Ontario Ministry of Labour Employment Standards Act:

http://www.labour.gov.on.ca/english/es/es_pubs.html

Canadian Consulate General in Hong Kong Fee Schedule

http://geo.international.gc.ca/asia/hongkong/pdf/FEESCHEDULEJul16_2007.pdf

Work Permit Application Guide:

http://www.cic.gc.ca/english/pdf/kits/guides/5487E.PDF

Application for a Work Permit

http://www.cic.gc.ca/english/pdf/kits/guides/5487E.PDF

Canadian Consulate General: Important Information for Applying as a Live-In Caregiver

http://geo.international.gc.ca/asia/hongkong/pdf/lcp-app.pdf

How to obtain a Police Clearance Certificate

http://www.cic.gc.ca/english/information/security/police-cert/index.asp