Rabbi Yonah Gross
Rabbi Yonah Gross, founder of Mezuzah and More, is the Rabbi of Congregation Beth Hamedrosh in Wynnewood, PA, a suburb of Philadelphia as well as the Kashrus Administrator for Community Kashrus of Greater Philadelphia (Keystone-K). He has semicha from RIETS - Yeshiva University. Rabbi Gross's shiurim on a wide variety of Torah Topics can be found here . 
Rabbi Gross recently completed an in-depth series on the Laws of Mezuzah which can be found here

Contact him here .