Core Viewpoint - The article discusses the innovative model of elevator installation in old residential communities, focusing on the establishment of a notarized supervision account and full custody service to alleviate the burdens on residents and project leaders [2][3]. Group 1: Elevator Installation Process - The "Elevator Notarization Benefit Home" initiative aims to address the challenges of installing elevators in old communities by restructuring the installation and maintenance processes [2]. - A collaborative system involving core points and supporting mechanisms has been created, allowing residents to authorize compliant elevator companies as "volunteer leaders" while ensuring transparency and compliance through community and street supervision [3]. Group 2: Financial Management Innovations - The transition from personal accounts to notarized supervision accounts for funding management ensures that each elevator installation has a dedicated account, preventing risks such as overpayment and misappropriation of funds [3]. - A financial product called "Elevator Loan" has been introduced, allowing residents to apply for loans up to 200,000 yuan for each elevator, with the use of funds being monitored by the notary office [4]. Group 3: Maintenance Solutions - The establishment of a custodial maintenance system allows project leaders to move away from lifelong responsibility for elevator maintenance, offering various maintenance packages priced between 3,800 yuan and 9,500 yuan annually [5]. - A comprehensive maintenance package at 9,500 yuan per year includes routine maintenance, electricity costs, annual inspection fees, and third-party liability insurance, ensuring residents have no concerns during the contract period [6].