Questão jurídica principal
Whether the appellant had standing to claim insurance proceeds after assigning the claim to the lessor.
Decisão extraída
No. The assignment was valid and remained effective; without a written retrocession or annulment, the appellant could not sue in its own name.
Fundamentação extraída
Under Art. 164 and 165 CO, the assignment transferred the claim to the lessor and deprived the assignor of disposal power. The contract terms and later dealings did not amount to a written retrocession, and the insurer had been informed of the assignment.