It is the purpose of this Chapter to protect the public health, safety, and welfare of the citizens of the City who live in rental units, the property owners who operate and manage rental units, and the general public who reside next to rental units, by adopting a rental dwelling inspection and maintenance program that corrects substandard conditions and maintains a standard for existing and newly constructed rental dwellings in the City. The operation of rental properties is a business enterprise that includes certain responsibilities. Rental owners, operators, and managers are responsible for taking such reasonable steps as are necessary to ensure that the citizens who occupy such rental units, as well as neighboring properties, may pursue the quiet enjoyment of the normal activities of life in surroundings that are safe, secure, and sanitary, free from noise, nuisances, and annoyances, and free from unreasonable fears about safety of persons and property.