I can tell you that the priest of my former parish exited the former Soviet Union with his wife on Israeli passports before their conversion to Orthodoxy in Rome (of all places!)! Does that help?
Father Alexander Men', a convert from Judaism to Orthodox Christianity in Russia, is venerated almost as a saint since his assasination* by politicized ultra-nationalistic, anti-Semitic, not-necessarily-religious Russians. There was a Panikhida (Memorial Service) in Slavonic for him in my former parish (OCA) in Claremont, NH, immediately upon learning of his death, and the entire Solzhenitsyn family, then members of the parish, attended.
There is a Father A. James Bernstein, a convert from Judaism, serving as a priest in the Western Region of the Antiochian Orthodox Archdiocese of North America.
I have personally witnessed the Baptisms of several Jewish spouses of Orthodox Christians myself in my former parish. These new Orthodox Christians put the rest of us to shame with their piety, zeal and love for Christ and His Holy Church.
Hypo-Ortho (just an American-born mix of Polish, Ukrainian, Czech, German and who knows what else!)
*I had written "canonization" rather than "assasination." That is what required this modification. Forgive me--my dyslexia comes through at the oddest times!