The covenant implied in a lease that ensures that the tenant will not be evicted by someone claiming prior ownership to that of the lessor is the:

covenant of quiet enjoyment

Explanation:

A promise made to a tenant that he or she will habit or occupy an estate or property without any disturbance or hostility but under a peaceful atmosphere. It is the certainty of peace and non disturbance in the use of a real estate property by a grantee or tenant contained in an agreement that has to do with real estate. covenant of quiet enjoyment is a lease term of agreement for both landlords and tenants that protects their right to quiet enjoyment while occupying a property. It protects a tenant from sudden eviction by someone with higher status.

covenant of quiet enjoyment

Explanation:

The covenant of prior enjoyment covenant of quiet enjoyment confirms an owner/ tenant against a disturbance of his or her right to possess/occupy and or use property. This ensures and prevents a prior ownershipclaim of taking title to property or causing nuisance. This is formal agreement between leesee and lessor

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