If shemurah matzot is a necessity to be yotzei the mitzvah de’oraisa on the 1st seder night, would it be also necessery to eat shemurah matzot on the 2nd seder too (Rebonnim be-chutz-le-eretz)?
Answer:
Yes, one should also eat shemurah matzah on the second night; the halachos of the second seder are parallel to the first seder.
Best wishes.