Zaid Alsalami

Bismihi ta'āla

In general, if it does not classify as "zeenah", beautifying oneself, it would be permissible, however Ayatullah Udhma Sistani does not allow even soft or natural looking makeup. 

https://www.sistani.org/arabic/qa/0504/\

The matter is not only just intention, but more than that as well. 

And Allah knows best

Bismihi ta'āla

No, a family member cannot do that. It is the authority of the Islamic judge, in an Islamic government. 

The family members must all just try to advice and guide.

And Allah knows best

Bismihi ta'āla

Yes, it is permissible, and of course a good thing. We need more Muslim female professionals. Of course, like many other industries and work, she must observe matters of interaction and physical contact with non-mahram males.

And Allah knows best

Bismihi ta'āla

There would be no problem with that, as long as it does not entail anything haram or promoting against our belief.

And Allah knows best

Bismihi ta'āla

Have you expressed your concern about this to them? Have you spoken about not only how it is haram, but also how it will deprive them of barakah and tawfiq in their lives? Try your best to politely explain all of this, and remind them.

If they still insist on having haram elements in their wedding, I would recommend you attend only the essential parts of the wedding, so as not to create conflict and future problems for yourself, as he is your brother. You can then excuse yourself, once there are haram things. If anyone objects, or gets upset, that is for them. You cannot obey or please someone at the cost of disobeying and displeasing Allah ta'ala.

And Allah knows best

Bismihi ta'āla

Yes, for women, the feet are a part of what must be covered, as hijab.

And Allah knows best

Bismihi ta'āla

According to our esteemed scholars, a Muslim woman cannot marry a non-Muslim man, so if they did a marriage, it would be invalid. If he converts to Islam, they can perform a nikah ceremony.

And Allah knows best

Bismihi ta'āla

For the validity of the contract, for whatever reason it may be, the parent must give consent. It is also definitely the ethical thing to do.

And Allah knows best

Bismihi ta'āla

It will not invalidate your prayer.

And Allah knows best

Bismihi ta'āla

She can request this from her husband, and the husband should comply. He has no right to force her to stay with him. He needs to give himself self-respect and cooperate.

And Allah knows best

Bismihi ta'āla

No. You do not need to do ghusl. The only time you will need to do ghusl is when the seminal discharge is by ejaculation, or intercourse. The pre-seminal fluid, etc, do not need ghusl. In your case, as it came out with urine, it just needs washing. 

And Allah knows best

Bismihi ta'āla

The first step is to make sure the husband cooperates, so that he does not refrain from granting divorce, as that will make things difficult. Speak to your family, and your local scholar, and follow the procedure for shar'i divorce.

And Allah knows best