Rabbi Eisenberg, originally from Chicago, IL is the oldest grandchild of HaRav Reuven Feinstein. R' Mordechai learned under his grandfather's direction for many years, Rabbi Eisenberg invested much time observing and getting shimush in practical Halacha. R' Mordechai received Smicha from HaRav Reuven on all areas of Halacha. Subsequently, Rabbi Eisenberg received Smicha from HaRav Dovid Feinstein and Rav Zalman Nechemia Goldberg as well. After serving as Rabbi for Monmouth Torah Links for some time, Rabbi Eisenberg observed a lack in the educational system and stepped up to the plate. In 2014 Kollel Horaah of America was founded. With the goal of guiding serious Yungeliet in the Derech of HaRav Moshe Feinstein Zatza"l and under the guidance of HaRav Reuven Shlit"a, as well as providing them with the ability to share their knowledge with others. Enabling them to learn, teach, counsel, guide, and lead.