Landlords typically in Lakewood do not raise rents on their tenants, because they were not gaining enough to risk the relationship, however now it is probably worth it. Keep in mind the courts would generally see a rent hike of over 5% as unethical and the tenant can fight the rent hike in court. I'm not sure how they are deciding currently although I spoke to a big local property manager and she said it would be considered not reasonable. I don't think most tenants would complain too much now because a lot of people did raise rents. I am curious what the rabbanim are saying, they must have had cases already.