If the court rules that the sublessee is not liable to the landlord for the unpaid rent, the most likely reason will be The sublessee's rent payments to the tenant fully discharged the sublessee's obligation to pay rent to the landlord.
Leasing refers to the agreement in contract that is formed between the lessee for paying the lessor who is the owner for the purpose of using a property. The property that is included in the agreement for the use will be a tangible property. The owner of the property will lease or rent it to be used by the lessee.
In the situation given, there is no forwarding of the rent by the tenant to the landlord. He left the jurisdiction and could not be found. The reason for which the court can rule that sublessee is not liable to the landlord for the unpaid rent will be The sublessee's rent payments to the tenant fully discharged the sublessee's obligation to pay rent to the landlord.