Question: Is it permitted to purchase shares of a company that sells non-kosher food?
Short Answer: Many poskim permit purchasing shares in a company that sells non-kosher food, particularly where the purchaser has no active management in the affairs of the company. On the other hand, there are some poskim who are strict and prohibit.
Question: May you use the same drinking glasses for both milk and meat?
Short Answer: There is certainly room to be lenient and use the same drinking glasses for both milk and meat. However, Rav Moshe Sternbuch shlita rules that it is noble to be strict.
Question: May a kashrus organization hire (and rely upon) a trustworthy and knowledgeable non-frum individual to oversee kashrus at a restaurant or company?