If necessary, such notice shall also require the building or structure, or portion thereof, to be vacated forthwith and not reoccupied or used until the specified repairs and improvements are completed, inspected and approved by the Building Commissioner. He shall cause to be posted at each entrance to such building or structure a notice:
"THIS STRUCTURE IS IN A DANGEROUS CONDITION AND HAS BEEN CONDEMNED AND ITS USE HAS BEEN PROHIBITED BY THE BUILDING COMMISSIONER."
Such notice shall remain posted until the required repairs are made or demolition is completed. No person, firm or corporation, or their agents or other servants, shall remove such notice without written permission of the Building Commissioner, and no person shall use or enter the building or structure except for the purpose of making the required repairs or of demolishing the building or structure. (Ord. 61-30. Passed 5-15-61.)