He is known for his involvement in the effort to produce a red heifer, which is a requirement for the rebuilding of the temple.
Rabbi Richman has a web television show, "Light to the Nations", on UniversalTorah.com, which explores the Jewish roots founded in the Torah and teaches people of the Jewish people's strong foundations in the Hebrew Bible.
Richman has written two books "A House of Prayer for All Nations: The Holy Temple of Jerusalem and "The Holy Temple of Jerusalem".