Can't the first-class property elevator have those advertisements?

Property companies have no right to set up advertisements in public areas such as elevators. Public areas such as elevators belong to all owners, and advertisements can be set up with the consent of the owners, but their income also belongs to all owners.

According to Article 54 of the Property Management Regulations

The use of property * * * with parts, * * with facilities and equipment for business, shall obtain the consent of the relevant owners, owners' congress, property services companies, in accordance with the provisions of the relevant procedures. Owners' income should be mainly used to supplement special maintenance funds, and can also be used according to the decision of the owners' congress.

Extended data:

Article 73 of the Property Law of People's Republic of China (PRC) belongs to the owner, except for urban roads. The green space in the building division belongs to the owner, except the urban public green space or the express individual. Other public places, public facilities and property services within the building division are owned by the owner.

Article 74 Within the building division, the parking spaces and garages planned for parking cars should first meet the needs of the owners. Within the building division, the ownership of parking spaces and garages planned for parking cars shall be agreed upon by the parties through sale, gift or lease.

Reference source: Baidu Encyclopedia-Property Management Regulations