Whenever notice of the intention to do any act, including the sale of real property, is given by publication, the last published notice shall be not less than twenty (20) days prior to the return day, the day of hearing, the day fixed for the sale or the day fixed for the doing of said act. (See also Pa. O.C. 1.2(b) and Pa. R.C.P. 106-108.)
Leh. Cnty. Pa. 4.2-2