How to write a notice for the owner to change his bedroom window to a floor-to-ceiling door

How to write a notice to change the owner’s bedroom window into a French door: How to write a notice from the property owner to change the window into a door in violation of regulations. Dear district leader: Building 10, No. 2, Qiu Songyuan Community, Phase I of Ocean Future City The owner of the first floor of the building illegally expanded the building, changed the window into a door, and installed a rain-proof structure on the upper part of the window without permission, which had an impact on the safety of the building. If you have violated the decoration regulations, in accordance with the relevant regulations of the Property Management Center, please correct and rectify the violation within days, that is, by the day of the year, until you meet the requirements of the Property Management Center.