Establishing that a landlord that offers a residential dwelling unit for rent is deemed to warrant the dwelling fit for human habitation; clarifying that certain mold hazards constitute dangerous conditions and defects for which a tenant may obtain relief; authorizing certain remedies for a tenant if a landlord breaches the warranty of habitability; providing that a court may order certain relief in civil actions relating to the breach of warranty of habitability, including actual damages, abatement of rent, and lease termination; etc.