Job Recruitment Website - Property management - How to write the Notice of Removing the Billboard in the Corridor issued by the office building property to the tenant?

How to write the Notice of Removing the Billboard in the Corridor issued by the office building property to the tenant?

Owner of each floor:

In order to ensure the cleanliness of the office building, please take down the billboards in front of their respective doors. If there are still billboards in three days, we will remove them as ownerless advertisements. Please tell each other that a good environment needs common maintenance.

Property office