I suggest that you consult page 5 of the document that we provided you. In it, you can find the list of steps to follow, which you call the hierarchy, when we decide that any surplus land belonging to the Government of Canada is to be sold. That comes from a Treasury Board Secretariat directive that we must follow.
In late 2015, the Treasury Board Secretariat in fact stated that official-language minority communities had to be explicitly consulted. Afterwards, our department updated its procedures and policies.