Can Someone Back Out Of A Deal If An Invalid Shliach Was Used? 

Bais HaVaad Halacha center is a convenient and accessible Halachic resource with a primary focus on business and marital Halacha. Working from its centers in Yerushalayim and the United States, Bais HaVaad enjoys direct access to the foremost Poskim of our times. Bais HaVaad Dayanim and Rabbanim are in constant contact with Torah luminaries such as...