In a situation where a tenant does not pay rent, which concept allows the landlord to regain possession of the leasehold?

The answer identifies the eviction process as the correct concept that allows a landlord to regain possession of the leasehold when a tenant does not pay rent. The eviction process is a legal procedure that landlords must follow to remove a tenant from the rental property. This process typically involves providing proper notice to the tenant regarding the lease violation—in this case, the failure to pay rent—and allowing them a certain period to remedy the situation before the landlord can proceed with legal action.

While a breach of contract occurs when the tenant fails to meet the terms of the lease, such as not paying rent, this term alone does not encapsulate the method by which a landlord can recover the property. The assignment of lease refers to transferring lease obligations to another party and is not directly related to the landlord's right to evict a non-paying tenant. Termination for cause can be related to eviction but is a broader term that may not specifically detail the process through which possession is regained. Therefore, the eviction process is specifically designed to address situations of non-payment, making it the most precise answer.