If the property owners refuse action, Early said the city can file a court order to have graffiti removed at the owner's expense.
"Usually when I file charges against a property owner, they will get it removed immediately," he said.
Engel's department was planning to seek a judge's order on Friday to clean up graffiti at a vacant property in the 1600 block of Lake Street that has recently become a target for taggers after a 10-day notice recently expired.
Residents can call in graffiti to the city's graffiti removal services and have tags painted over for a suggested donation to cover material costs.