Core contents of the opinion: First, "construction on behalf and lease" model specification, clarifying the core process of the model: after the owners vote to agree to install the elevator, they sign a construction on behalf and lease contract with a qualified elevator enterprise. The enterprise is responsible for the whole process of elevator design, approval, construction, installation and maintenance. The elevator property right belongs to the enterprise, and the owner pays the rent monthly. The lease term is not less than 15 years. After the lease expires, the elevator property right is transferred to the owner free of charge; Second, enterprise access requirements, clarifying that elevator enterprises participating in the "construction on behalf and lease" model must have A-level qualifications for elevator production, installation and maintenance, with a registered capital of not less than 50 million yuan, and a complete after-sales maintenance system. It is strictly prohibited for enterprises to subcontract projects; Third, financial subsidy policy, elevators installed in the "construction on behalf and lease" model enjoy the same financial subsidies as the self-financed self-construction model. 100,000 yuan/unit for 4-storey residences, 10,000 yuan increase for each additional floor, up to 180,000 yuan/unit. The subsidy funds are directly allocated to elevator enterprises to reduce the financial pressure of enterprises; Fourth, owner rights protection, clarifying that the rent standard must be fixed in the contract, and the price shall not be increased arbitrarily during the lease term. The maintenance, repair and renewal costs of the elevator in the whole life cycle shall be borne by the enterprise, and the owner does not need to pay extra. At the same time, it clarifies that the enterprise is the main body responsible for elevator operation safety and emergency rescue; Fifth, optimized approval process, the elevator installation project of the "construction on behalf and lease" model enjoys the "green channel" approval service, implements "one-window acceptance, joint review, parallel approval", the approval time limit is compressed to 15 working days, and supports owners to withdraw housing provident fund to pay elevator rent.