The Mortgage Finance Authority Act shall be deemed to provide an additional and alternative method for the doing of the things authorized by that act, shall be regarded as supplemental and additional to powers conferred by other laws and shall not be regarded as in derogation of any powers now existing; provided that the issuance of bonds, notes, other obligations, pass-through securities or guarantees under the provisions of the Mortgage Finance Authority Act need not comply with the requirements of any other law applicable to the issuance of bonds, notes, other obligations, pass-through securities or guarantees.