>>607507
First off, you should direct any questions you may have to your priest. You should regularly make an appointment with him so that you can ask him things.
Nothing can disqualify one from converting, although the motto is "come as you are, expect to be changed." If we had to expect perfection from those who wanted to join, the Church would be empty. It is a hospital for spiritual illness after all.
We don't have a history as violent as that of the Latin churches, for the simple reason that the Byzantine empire preferred mutilation+exile over capital punishment, and also we were (and still are) too much under the foot of Islam to be in a powerful enough position to persecute others. The Russian Church was not exactly kind to the Old Believers though, and let's not forget that the Crusades were a collaboration effort (although we massacred Latins a couple of times during that time).