Thanks Taran. Another question: I am trying to answer why the company had a residential address for the mailing address before but I could not find an easy answer that would not make the officer not happy.
We already ordered the registry of joint stock document online when the address change happened and I plan to mention that we have no experience in this area but when doing some research online, it is not uncommon to use a residential address for an LTD company and put this link for further information:
http://www.ic.gc.ca/eic/siTe/cd-dgc.nsf/eng/cs07025.html