Stallings was national co-president of the American Clergy Leadership Conference, an affiliate of Moon's Unification Church and active in efforts to widen Moon's influence among black clergy. He regained attention in 2006 due to his association with excommunicated Roman Catholic archbishop Emmanuel Milingo and his group Married Priests Now!. Milingo consecrated Stallings and three other independent Catholic bishops conditionally in a ceremony in September of that year. Stallings is also active in the "Middle East Peace Initiative", which promotes conflict resolution between Israeli Jews and Palestinian Muslims.