Question:
Is it permissible for a 14-year-old girl to stay with her uncle and his 3 daughters (ages 12, 9, and 5) for Shabbos?
Answer:
Thank you for your question.
It is not yichud, since your uncle is together with three of his daughters. Even though it will be at night, and there is a need to have one extra person there to break the yichud, it is permitted.
Best wishes
Sources:
Rema E:H 22-5.
