In which of the following situations would a tenant's right to occupy a property end?

A tenant's right to occupy a property typically ends with the expiration of the lease terms without renewal. When a lease agreement is created, it specifies the duration of the tenancy. If both the landlord and tenant do not agree to extend or renew the lease once that period has lapsed, the tenant's right to occupy the property ceases, as the legal basis for their occupation is contingent upon the terms of the lease.

While the other situations presented may impact the tenancy in various ways, they do not directly result in the termination of a tenant's right to occupy the property solely on their own merits. For example, completion of rental payment generally affirms the tenant's right to remain in the property as long as the lease has not expired, and ownership transfer does not inherently extinguish the lease agreement. Similarly, a modification of the agreement can adjust terms but does not end the right to occupy unless there is a specific clause that states otherwise. Therefore, the key factor here is that when the lease term expires without renewal, the legal right to occupy is concluded.