If you don’t spend 6 months in Nova Scotia you will be committing healthcare fraud if she uses the card knowingly. Being out of NS your chances of being caught are much higher if you try to use the card in Ontario. Having a valid card and qualifying for healthcare are very different. If you use the card in Ontario there are much better chances those expenses will be audited and you will be asked to pay back anything she uses.
OK now this is hell.
Thank you for the information