(1)    The authority shall collect rents for the use of, or other revenues relating to the financing of, each project. The authority shall contract with a participating health institution, participating educational institution, participating nonprofit institution, or participating research institution for each issuance of bonds. The contract shall provide that the rents or other revenues payable by the health facility, educational facility, nonprofit facility, or research facility shall be sufficient at all times to:

      (a)    Pay its share of the administrative costs and expenses of the authority;

      (b)    Pay the principal of, the premium, if any, and the interest on outstanding bonds of the authority issued in respect of such project as they become due and payable; and

      (c)    Create and maintain reserves which may but need not be required or provided for in the bond resolution relating to such bonds of the authority.

   (2)   The authority shall pledge the revenues derived and to be derived from a project and other related health facilities, educational facilities, nonprofit facilities, or research facilities for the purposes specified in sub. (1), and additional bonds may be issued which may rank on a parity with other bonds relating to the project to the extent and on the terms and conditions provided in the bond resolution. Such pledge shall be valid and binding from the time when the pledge is made, the revenues so pledged by the authority shall immediately be subject to the lien of such pledge without any physical delivery thereof or further act and the lien of any such pledge shall be valid and binding as against all parties having claims of any kind in tort, contract, or otherwise against the authority, irrespective of whether such parties have notice thereof. Neither the bond resolution nor any financing statement, continuation statement, or other instrument by which a pledge is created or by which the authority’s interest in revenues is assigned need be filed or recorded in any public records in order to perfect the lien thereof as against 3rd parties, except that a copy thereof shall be filed in the records of the authority and with the department of financial institutions.