It's possible she will be asked so should have your address just in case. Before we moved here permanently and were just coming to visit our daughter, we had to give that information and several of our visitors have also been asked. It won't be a problem.
<em>edited by amelia on 22/07/2014</em>
This may be a silly question but I'm gonna ask anyways....
My husband and I are Canadian and we have an American friend (single female) coming to visit. Is this allowed? Will she be asked at passport control where she is staying?
TIA