Is it permissible to buy a house in Canada through usurious banks due to the lack of other options, and based on the opinion of some researchers who deem it permissible for those not residing in an Islamic country?

The ruling on usury in non-Muslim lands is the same as its ruling in Muslim lands, according to the majority of scholars. Their evidence is the absolute religious texts that do not differentiate between the land of war and the land of Islam, nor between a Muslim and a non-Muslim. Purchasing a home is not a necessity as long as renting is possible.