Live in caregiver is not considered skilled work but there is a special immigration program for live in caregivers in Canada. If you don't qualify as a skilled worker, you can do that but that means you would have to be separated from your family for another 2 years. A live in caregiver in Canada has the right to apply for PR for themselves and their family after 2 years of work, see
http://www.cic.gc.ca/english/work/caregiver/index.asp