The landlord had told them he wanted to raise the rent to $3,500 and when they complained he decided to raise it to $9,500.
“We know that our building is not rent controlled and this was something we were always worried about happening and there is no way we can afford $9,500 per month," Yumna Farooq said.
In both the Western countries I’ve lived so far (France and Italy, but my guess is the list is much longer), this wouldn’t be possible.
The landlord could at most adjust the rent to inflation.
The only wag he/she could ask for such a steep increase is by making a brand new contract with someone else, but for that purpose the current contract should be terminated, which isn’t possible if your occupants are paying their rent, unless he/she wants to re-take possession for selling the apartment/house or to live in it. If they fake the repossession and actually end up renting again to an inflated price, the new contract is deemed void and the previous occupants could be reinstated.
In my province on Canada this is illegal. I’ve taken landlord to the rentalsmen who tried pulling illegal rent increases and won before.