Form any Subsidiary unless (i) such Subsidiary expressly joins in this Agreement as a borrower and becomes jointly and severally liable for the Obligations, and grants to Agent a lien on substantially all of its assets as security for the Obligations, and (ii) GSO shall have received all documents, including legal opinions, it may reasonably require to establish compliance with each of the foregoing conditions; provided, however, that any investment in a Subsidiary by a Borrower shall be subject to Section 7.4 hereof.