87. An undertaking planning to work on multifamily buildings held in divided co-ownership of more than 5 private portions shall also supply the manager with(1) a certificate of financing;
(2) plans of architecture, structure, mechanics and electricity with a seal and approved by the municipality and alterations to those plans if major alterations occur while in progress;
(3) a complete ground analysis;
(4) a copy of the memorandum provided for in article 1787 and following of the Civil Code;
(5) a copy of the building permit issued by the municipality; and
(6) a copy of the preliminary contracts.