All taxes assessed, together with any percentage and penalties imposed for delinquency and the cost of collection, shall constitute liens on the property assessed; every tax upon the personal property shall be a lien upon the real property of the owner thereof. The liens, provided for in this article, shall attach as of the first Monday in March of each year, and may be enforced by action in any court of competent jurisdiction to foreclose such liens, or by a sale of the property affected and the execution and delivery of all necessary certifications and deeds therefor, under such regulations as may be prescribed by ordinance. (Amended April 21, 1941)