As the number of unsanitary houses remains steady, Chicago needed a strict enforcement of the law to get rid of the unsanitary houses. So, the reviewed legislation and rise of the rental means-additional funds for the landlord to repair houses, which consequently leads to a good condition of tenements.
Due to the increasing rate of urbanization, we should refer to this quote as it conveys the key concept of the problem-solving, which is: to investigate carefully reasons behind the urban issue