What are the pre-intervention aspects, charging items and charging standards of property management?

Your question is too general. Different projects and the same project have different service standards. You must make clear the basic situation of the project, formulate a service standard, and calculate the expenses of security, cleaning, management, greening, engineering maintenance, facilities and equipment, statutory taxes and fees, personnel salaries, etc. according to your project, and formulate a property management plan or tender. Charges mainly include property management fees, parking fees, special service fees, advertising fees, insurance fees, decoration management fees, etc. They are formulated according to the principle that property charges are compatible with property services in the Property Management Regulations, and reported to the local price department for the record.