Msgr. Paul McPartlan , professor, systematic theology and ecumenism, was quoted in an article posted by Aleteia discussing the common ground that can be found between Catholic and Orthodox understanding. See below.
From: Aleteia Date: October 3, 2016 Author: John Burger
...The Chieti document, "Synodality and Primacy During the First Millennium: Towards a Common Understanding in Service to the Unity of the Church,"also gives Catholic-Orthodox dialogue a common basis on which to build, says Msgr. Paul McPartlan, a member of the Joint International Commission for Theological Dialogue between the Roman Catholic Church and the Orthodox Church that hammered out the agreement...
...Msgr. McPartlan, professor of systematic theology and ecumenism at the Catholic University of America, spoke with Aleteia about the document and its significance in advancing the hoped-for unity of Catholic and Orthodox...
Read more about McParlan's expertise.