Which scenario would most likely lead to a constructive eviction?

A scenario that leads to constructive eviction occurs when a landlord's actions or inactions make a rental property uninhabitable or significantly diminish the tenant's quality of life. This allows the tenant to vacate the premises without legal repercussions.

When a landlord fails to fix broken heating, especially in climates where heat is essential for comfort and health, the livability of the property is compromised. In this case, the tenant may be justified in leaving the property because the essential service of heating is not being provided, which is a fundamental obligation of the landlord. This failure creates a situation where the tenant's living conditions are intolerable, fitting the legal definition of constructive eviction.

The other scenarios do not typically create grounds for constructive eviction. Providing more services might actually improve the living situation for tenants. A tenant refusing to pay rent does not relate to eviction conditions set by the landlord and making unauthorized changes by the tenant, while possibly breaching terms of the lease, does not affect the livability of the unit or create an inhospitable environment.