Landlords have responsibility even though tenants are responsible for general maintenance to the property they are renting. If they are keeping home clean and mold happens anyway, they will be pointing fingers at the landlords. This is because if the property was sound enough to be liveable, excess moisture buildup inside should not trigger mold.
Sometimes it happens due to weather, especially in humid areas and flood prone locations such as Florida or New Orleans.
The problem can be easily discernible and respond to a simple fix, or it can be a complex trapped moisture-behind-multiple-walls issue. To meet building and safety codes a landlord must repair problems that are defects in the structure. But if the tenant did something that caused the problem, such as install a leaky window unit, the tenant can be held responsible.
If you’re in California, you might want to give us a call and see about getting an assessment from Byebyemold.