I live in Chicago and rented in Chicago for many years and I never saw a lease that hadn't been drafted by a lawyer. Most leases are boilerplate --- let alone rentals
without leases. If you're renting an apartment without a lease, something shady is going on.
But look, in the meantime, can we just implicitly narrow the conversation down to the normal case of "renters with actual leases"? This is a stupid tangent. Obviously there are landlords who don't give a shit if people in their buildings convert apartments to hotels, just as there are buildings where the other tenants don't care either.