English to Spanish Bus/Financial Finance (general)

No estoy segura a qué se refieren con "agency" en este caso, ya que es una palabra polisémica. ¿Será "aseguradora/afianzadora" ? Se trata de un contrato de crédito.

Each of the Senior Lenders shall have the right to permanently reduce the undrawn and uncancelled amount of its commitment if the disbursement request has not been delivered prior to the first anniversary of the signing date (i) to the extent that any Change of Law has occurred that which makes it unlawful or impossible for any Agency Guarantor to guarantee or insure senior loans to be provided in respect of all or a portion of such commitment.