Feivi Heller works in real estate in Toronto, Ontario. He was born in London, England, and moved to Canada after getting married, though his wife is from Belgium. He attended yeshiva in Gateshead, England.

Mr. Heller has been teaching mishnayos for over 35 years to his children, grandchildren and various students. He finished Shas Mishnayos with each of his sons and is continuing the practice with his grandsons. He is also currently 90% of the way through Shas Mishnayos with one of his students.