Mentorship is the core of the conversion process. While the online learning is important, it does not compare to the time students and mentors spend together. With that in mind, we require that students who have previously converted with an educator and wish to convert with another (such as changing from a Reform rabbi to an Orthodox rabbi, or vice versa) restart their learning. We do not give credit for time spent learning with previous conversion mentors. Learn more about this policy here.
You can also learn more about Jewish denominations here.