Here is the reply from CIC about caregiver extensions sent to my email and this clears it up for me:
Sir, Madam,
Thank you for contacting the Call Centre. I am pleased to provide you with the requested information:
As a live-in caregiver, if you have been in Canada under the Live-in Caregiver program for less than 3 years and you continue to work for the same employer, you do not need a new Labour Market Opinion (LMO) from Human Resources and Social Development Canada when applying to extend your stay in Canada as a worker.
If you want to continue working for the same employer, you will need to get:
a letter from the employer stating that you will continue to be employed on a full-time basis for an additional period of time;
a copy of a new, or extended, signed employment contract; and
for live-in caregivers working in the province of Quebec, a Certificat d’acceptation du Québec (CAQ) from the Ministère de l’Immigration et des Communautés culturelles.
However, if you have been in Canada under the Live-in Caregiver program for more than 3 years and you choose not to apply for permanent residence or you do not qualify, you will need a new LMO to apply for a work permit, even if you are staying with the same employer.
Once you have the necessary documents, you can apply for an extension of your Work Permit through the Case Processing Centre in Vegreville, Alberta. This application is available on our Web site. You can complete the application on-line and print it or print it and fill it out by hand.
The Internet links below will provide you with more detailed information:
Description: Application to Change Conditions or Extend Your Stay in Canada as a Worker
Address: http://www.cic.gc.ca/english/information/applications/extend-worker.asp
Description: Application fees
Address: http://www.cic.gc.ca/english/information/fees/index.asp
Description: In-Canada Application Processing Times
Address: http://www.cic.gc.ca/english/information/times/canada/process-in.asp#temp_res
Description: Sample Contract
Address: http://www.cic.gc.ca/english/work/caregiver/sample-contract.asp
Description: The Live-in Caregiver Program
Address: http://www.cic.gc.ca/english/work/caregiver/index.asp
Description: Ministère de l'Immigration et des Communautés culturelles
Address: http://www.immigration-quebec.gouv.qc.ca/en/index.asp