Interesting article in today's news about the group responsible for Notre Dame de Lafayette University, Romano Byzantine College, St. Mark Seminary and College and others: 'Holy men' blaze curious trail across country
Sad and bizarre history. I think Dr. Bear wrote about them under their previous incarnation. Orthodoxy is complicated. Best thing is to check and see if they are canonical (SCOBA in the US). There are legit uncanonical groups (eg old calendarists) but when you look at this group's web site their are more than a few red flags.