A friend of mine, who doesn't have a family background of any religion and being enthusiastic of having one, baptized and entering into a eastern catholic monastery in Brazil. While he was there, he witnessed numerous (according to his record, I for myself never been there) both liturgical abuses and over-liberal theology among clergy and religious, as well as the grievous influence from "pagan religion", and on and on.
He researched much on Catholicism, Eastern and Orient Orthodoxy. The good thing is though this he learned a lot and, thanks to my friends who are experts on theology, by now he won't reject any Catholic doctrine. Still, what he's seen (stated above) and, I guess primarily, the appearance of liturgy are seriously make him to go to Coptic church.
Because it's not a intellectual problem, my friends and I are kind of out of ideas except doing a novena of Mary help of Christians. Is there any other thing might help?