hakohen53 said:
Our Rav suggested that my son could daven there but that since he was an ashkenazi he should walk out and not duchan, especially because this was going to be an every day occurrence and not just a one time situation.
A while ago I asked my Rav who quotes a teshuva of Rav Shlomo Zalman Auerbach said that it’s OK for a Ashkenazi cohen to duchen at a Sephardi minyan. I did not ask about daily vs. occasionally.