My son made aliyah and keeps 1 day yom tov I will be visiting him sukkoth from canada do I have to keep 2 days thankyou
Answer:
Yes, you need to keep 2 days.
The status of your host, family member or not does not effect your status as someone who is merely visiting and has clear intent to return. The halacha clearly requires 2 days of Yom Tov in this scenario.