ANSWER:

Her in laws are like any stranger on the streets if not worse! She has to wear an outer garment along with covering her face when she is in front of non mahrams in a joint family system and neither she can mix with them.

In a joint family do my wife has to wear the jilbab all the time or just if she dkes niqab it’s ok?if she wears a dress like gown(not as outer garment like jilbab but only a cloth where her bones curves are not visible) in joint family then is it ok?