If no appeal has been prayed, then within 20 days after the time hereinbefore limited therefor or after the return of the decision on appeal has been made to the Board of Municipal and Zoning Appeals or to the Circuit Court for Baltimore City, the Department of Transportation shall transfer its return to the Director of Finance. The Director of Finance shall proceed forthwith to notify the parties assessed for benefits by means of bills:specifying the several sums so assessed; and warning them that if the same be not paid within 3 months from the date of the transfer of the Department of Transportation’s returns, he will proceed to collect the same by way of sale of the specific pieces or parts of property on which the unpaid sum or sums of money have been assessed, in the manner provided by law for the sale of property for the nonpayment of taxes on real estate situate in Baltimore City. City Code, 1879, art. 47, §12 1893, art. 48, §12 1927, art. 45, §13 1950, art. 35, §9 1966, art. 26, §60 1976/83, art. 26, §67 Ord. 1866-026 Ord. 1889-002 Ord. 51-1530 Ord. 75-945 Ord. 15-435