My understanding is that the "shared housing" clause is still only applying to landlords, not individuals seeking a roommate. So if you're the Catholic Church

My understanding is that the "shared housing" clause is still only applying to landlords, not individuals seeking a roommate. So if you're the Catholic Church running a women's boarding house on the upper east side of Manhattan, you are allowed to advertise to (and rent to) only women, but you can't restrict it further to only Catholic women.