The term used when a tenant transfers property rights without the landlord’s approval is called?

The term for when a tenant transfers property rights without the landlord's approval is "unauthorized sublease." This situation occurs when a tenant who has leased a property attempts to lease it to another party without obtaining permission from the landlord, which is typically required under most lease agreements.

In many lease documents, there are explicit clauses that stipulate the need for landlord consent before a tenant can sublet the property. Failing to comply with this requirement creates a breach of the lease agreement. The concept of an unauthorized sublease signifies the tenant's violation of their contractual obligations, highlighting the importance of consent in property law and rental agreements.

In contrast, "transfer of property" is a broader term that can refer to any legal method of transferring ownership or rights to real estate and does not specifically address the legality of the tenant’s actions. "Illegal assignment" typically refers to transferring rights in a lease agreement without following proper legal procedures but does not fully capture the essence of subleasing without consent. Lastly, "eviction" pertains to the landlord’s legal act of removing a tenant from the property and does not directly relate to the act of transferring rights without approval.