My grandmother leased a property to a usurious bank. After she passed away, we gave the bank a judicial notice to abandon the property, but the bank`s administration asked for a one-year extension. Is it permissible to agree to that?, Or should we continue with the court procedures, knowing that they will take one year? Moreover, is it permissible for my mother not to inform her nephews about this since they own 5% of the leased property? And what is the ruling on the rent, which is taken by my mother, since she hadn`t leased the property in the first place?

When a person takes a land from its rightful owner unjustly and builds on it, is the land and the building the right of the original owner?