Does the unit (sub-unit) project completion acceptance report have legal effect?

Yes According to relevant information, the completion acceptance report refers to the report issued by the owner, design, supervision, survey and construction unit * * * after the project is designed according to the contract and drawings, and the construction meets the acceptance conditions according to the relevant national specifications. The completion acceptance certificate is the handover book handed over to the property company for management after the project acceptance, which is signed by both the construction unit and the property unit for confirmation.