The city started the rental inspection program in 1994 in an attempt to crack down on property owners who fail to maintain their homes, whether split into apartments or rented as a single-family residence.
Those that don't follow the program rules are fined or lose their property. 
mnli hypothesis: Those that don't follow the program rules are fined or lose their property.  premise: The city started the rental inspection program in 1994 in an attempt to crack down on property owners who fail to maintain their homes, whether split into apartments or rented as a single-family residence.