A daughter is a female offspring- a girl or woman in relation to her parents. Daughterhood is the state of being someone's daughter. The male counterpart is a son.
Your husband's step father is non Mahram to you and to your future daughters as well, simply because he is not the biological father of your husband.
It depends on the father's statement whether he meant giving her the full choice to marry whom ever she selects in Nikah or Mut'ah marriage.
If he was meaning permanent marriage Nikah only, then she still needs her father's permission for Mut'ah.
Step-dad of your husband in non Mahram to you and to your daughters. If he has a real son who can enter with you in a verbal temporary marriage contract for a short while with out consummating it , that will make his father (the step-dad) Mahram to you and your daughters. If that verbal contract is done with your daughter, his real father ( the step-father) will be Mahram to your daughter.
After removing the share of living parent if any, and any loan or will of the deceased, the remaining should be divided into six equal shares, two shares for the son, and one share for every daughter.
If your adult daughters find it difficult to wear full Hijab at home in front of the Non Mahram man, you must protect them from falling in sin of being seem by him with out full Hijab. You must arrange for him another place to live, away from your adult daughters.
No share for the deceased son or daughter nor to their children after them as far as they died before their parents. When a person dies leaving his own children, and grandchildren, direct children only have the right to inherit from him as far as they were alive when the parent died. Those who died before their parents have no right in inheritance unless all the children have dies before their parents, then their children will inherit from their grand parents because no direct son or daughter are alive.
No one has any right in inheriting from this man but his own two daughters and his wife if she was alive when he passed away. Wife should get one eighth and rest should be equally divided between the two daughters. If no wife was alive when he passed away, then all the property and wealth should be dived equally between his two daughters only. No one else from the relatives is entitled for any inheritance from him. This is according to Ahlul Bayt (AS) who have the real teachings of the Prophet (SAWA). Sunni brothers have something different which prevents the daughters and give to other male relatives, which is away from Quran and Real Sunnah.
You need to keep in touch with her and treat her nicely being a practicing Muslim so that she will see the great manners of Islam. You should try to invite her to Islam as and when you find a suitable chance. Her being non Muslim does not mean always that she denied Islam deliberately. She might had been a victim of ignorance or misleading propaganda.
You should do your best to give the practical evidence that Islam is the best religion.
Thank you for your question. Although each circumstance is different, a starting point, after making sure you and your spouse are on the same page, may be to have a clear conversation with your inlaws to find out why they are uncomfortable with your daughter wearing hijab. The second step would then be to make absolutely clear that this is something you would like for your child and that you are not happy with any type of discouraging. In short, it is important to set a clear boundaries and if that boundary is not respected then you can think of the next appropriate action.
May you always be successful
Two thirds of what he left goes to the son, and one third goes to the daughter. This is if he left only one son and one daughter only with out wife. If he left a wife, she gets one eighth, then the remaining should be made in three equal shares, two shares for the son and one share for the daughter.
Yes this is allowed.
May Allah grant you success
Waking up for eating or drinking in Sehri (Sohoor) is not a condition in fasting. Fasting is must on Baaligh Muslim whether they wake up or don't wake up for Sehri.
Baaligh girl ( who completed full nine lunar years) must fast the month of Ramadan. Not fasting is a major sin which requires then Qadha of that day, and Kaffara of fasting two months or feeding of sixty poor believers, for every day of not fasting.
Giving Kaffara does not make it permissible.