Purdah

Purdah between non-mahram males and females

Q: My friend [24f] makes parda from her brother in law [17m]. However her father's first cousins is her husbands maternal uncles and she doesn't make parda from them. Upon telling her she brought the hadith of brother in law being death and said there is no specific ahadith relating to her having to making parda from her husbands mothers brothers therefore she doesn't have to. Is it true?

Brother in law and sister in law observing strict purdah

Q: I recently heard someone say that it is permissible for the sister-in-law to not make parda from her brother-in-law when: 

1. There is no scope of fitna. 

2. When it becomes difficult for her to leave her own room for basic needs. 

My friend has recently married into a family of 6. They live in a small flat. Her brother-in- law is 6 years younger than her and she claims he is an actual replica of her brother in her maternal home. There isn't a chance that they can ever be alone. It becomes difficult for her to constantly be in her cloak, burkha and pardah the entire day almost as if she is at a guests home and not in a home that she has a right to stay in. What is the ruling regarding this?

Woman not observing pardah with non mahram males

Q: A woman doesn't observe pardah (covering her face). 

She works in a home. There is a man and a woman. The man observes pardah from her. When she comes to work, she comes walking and without pardah. The employees have tried to encourage her to wear pardah but to no avail. 

Now she is offered a job at another place. There it is not clear who she will come into contact with. 

My question is, if a person suggests for her to take the job, is the person sinful because she will come into contact with men. She isn't observing pardah, she is also leaving the house to come to work, so on the way she is going to come across men.