From time to time, at the expense of the Lessees, promptly execute and deliver all further instruments and documents, and take all further action that the Lessee Representative may reasonably request, in order to perfect, protect or more fully evidence the purchases, sales and assignments and security interests hereunder or under the other Transaction Documents, or to enable the Lessees or any Affiliate thereof to exercise or enforce any of their respective rights hereunder and under the other Transaction Documents. Without limiting the generality of the foregoing, the Buyer will upon the request of the Lessee Representative authorize and file such financing or continuation statements, or amendments thereto or assignments thereof, and such other instruments or notices, and take such other actions, as may be necessary or appropriate to perfect and protect any Liens granted by the Buyer to the Lessees.