Hi there,
Great question !
Unfortunately, Nova Scotia rent would not qualify for this credit as it is an Ontario only credit. Only rent paid in Ontario would qualify.
Here's a link to the TurboTax hub for more details:
https://turbotax.intuit.ca/tips/claiming-rent-on-your-taxes-in-ontario-287?srsltid=AfmBOoozm3pDPlCYd7ddkPDI_xDkzFSGGsE2H7eLR2wIYTcI7qGFCMMX
Thanks!
Kim