It is a good idea to tell someone you have a mandate, but you do not have to tell them what is in it. It is your decision. You should tell the person you have named as mandatary about the mandate, because he/she has to agree to accept this responsibility. You can tell your mandatary where to find the original copy.
Your relatives can search the Registre des dispositions testamentaires et des mandats du Québec (Quebec Register of Wills and Mandates) to see if you have registered a mandate there. They can:
to the following address:
Registres des dispositions testamentaires et
des mandats de la Chambre des notaires du
Québec
Tour de la Bourse
800, Place-Victoria, niveau Promenade
C.P. 469,
Montréal (Québec) H4Z 1L9
Your relatives will receive a search certificate that tells them whether a mandate is registered in your name. It will also tell them the name, address and phone number of the lawyer or notary who has the original mandate.