Salamualikum sheikh what is the ruling on a woman if she gets invited in a house gathering and there are men that are far away from her but they can see her and she has to eat but is a niqabi. Can she take her niqab off? What if she's hosting it and she comes infront it non mehram in her house cloth

Ustadh AbdulAziz al-Haqqan
Taking niqab is not allowed ofcourse as they are non mahram. And you should be segregated so that u can be comfortable and they can as well.