help elaborate

4. On June 9, 2016, Jessica signed a lease agreement and moved into a bottom floor flat in a double-decker house in Jacksonville, Florida. The double-decker's owner was Slumlord, who lived on the floor above Jessica. When Jessica was in the third month of a one-year written lease, she started to experience a series of unexplained respiratory illnesses. After several visits to the doctor, Jessica finally received a diagnosis that the illnesses likely were caused by exposure to toxic mold. Slumlord found this hard to believe since he never experienced any respiratory illness, nor had any previous tenants ever complained of this illness. Jessica hired a private inspector who determined that sections of the walls and ceilings of her apartment contained high levels of toxic mold. After receiving the inspector's report, Jessica moved out her belongings, handed her keys to Slumlord, and declared, "I'm outta here!" She paid no further rent. Slumlord did not advertise or attempt to rent the apartment but rather waited until the remaining nine-month term of the lease expired and sued Jessica for the entire amount of rent due under her lease. What is the likely result