Rabbi Yosef Greenwald Question: Someone wants to buy shoes from an online website but they do not know the exact size that fits them. Is it permitted halachically to enter a local shoe store, try on the same type of…

Rabbi Yosef Greenwald Question: It is quite common nowadays to use songs created by others for promotional videos and other purposes, and most people will do so without even thinking twice. What are the halachic parameters of using music in…

Rabbi Yosef Greenwald Case: A contractor decides to install extra items in a house he is working on without consulting the owner. For example, an electrician is hired by a homeowner to install eight light fixtures or spotlights, and he…

Rabbi Yosef Greenwald   Answer: The basic issue at hand in questions like this is whether any system or program that the employee is paid to create for the employer belongs to the employer or not. Within halacha, this issue…