Last I heard Pauline sold her Ile Bizard castle and moved into a multi-million dollar apartment in the Canada Life building
http://www.vieux.montreal.qc.ca/inve...p?sec=o&num=14 on St-jacques street, adjacent to the St-James hotel. She uses it as her Montreal rez.
(skyscraper related note: the canada life building is actually Montreal's first true skyscraper.
other skyscraper-related note: I think the official residence of the premier of Quebec is in the penthouse of the Price building in Quebec city. Which is pretty darn cool.