Section 67
SEC. 67. Remedies cumulative, simultaneous and unconditional.-Collection of the real property tax may be enforced through any or all of the remedies provided under this Code, and the use or non-use of one remedy shall not be a bar against the institution of the others. Formal demand for the payment of the delinquent taxes and penalties due need not be made before any of such remedies may be resorted to; notice of delinquency as required in Section sixty-five hereof shall be sufficient for the purpose.