Jamaat Salaah and Imaamat

Q: Is it possible for a man to lead in salah his female mahram family members? So can one man and one woman pray in congregation? 

Is the presence of atleast 2 males necessary for congregational salah?

Q: 

1. Will a clean shaven Hafiz be termed as a fasiq in Shari'ah? 

2. Will his Shahadat be accepted? 

3. Can he lead Taraweeh Salah in his own house with people behind? 

4. Can he be appointed to assist with administrative and running of finances in a Masjid?

Q: I have a situation where in my work place in Saudi Arabia (far from any musjid in construction site), the person that often is imaam of the small musallah we perform zohr and asr salah, makes masah over his normal cotton socks when he makes wudu. 

I read salah for few months behind him and only found out about this recently. 

He confirmed that some scholars in Saudi passed a fatwa that its permissible. It would seem that many of the general public here follow this fatwa. 

I do not want to argue and create fitnah based on the situation. I know the fatwa is that wudu is not valid if masah is made over normal cotton socks based on majority opinion. 

However, based on my situation/ the fact that I did not know or could not control the imaam, is my previous salah valid or should I repeat it? 

Also, going forward, what should I do: Can I read salah behind him, based on the fact that I cannot control the imaam - perhaps consider him a different madhhab/ different opinion with salah being valid Insha Allah or is salah invalid for sure in which case. Should I read salah behind him and repeat it or should I try to avoid and read on my own. This will result in me not being able to make salah in jamaat at work and possibly create division. (Also reading salah and repeating is a challenge especially asr based on limited time and people observing you).

Q: If a person misses a rakaah of his Salaah with jamaat and he is a masbooq then what is the correct method of standing up? 

I have noticed that everyone stands up after the first salaam. Is this correct or is it better to stand up after both the salaams?

Q: If I am performing salaah as a Hanafi behind a Shaafi and he makes an error by forgetting the first tashahud in Asr Salaah, what is the right way of making sajdah sahw or should the salaah be repeated?

Q: I have problem. Last year I had a panic attack while performing salah. From that day I am unable to pray salah in a masjid. Whenever I went for salah in the masjid, my situation becomes very worse. A lot of times I had to cut my salah and come home and then I performed salah at home. 

My question is, can I perform my salah at home till my situation becomes good.

Q: If there are only two people reading namaaz together, should they stand next to one another or should the person following stand at the foot of the imaam?

Q: There is a man who brings his small son to the masjid. The na baaligh son wears shorts and his knees are exposed. Is this permissible?

Q: In some hotels in Makkah Mukarramah, there are jamaat khanas/musallahs that overlook the Haram Shareef. For Jumuah and some salaah when the crowds are very large, people perform salaah in these jamaat khanas/musallahs and follow the imaam of the Haram from there. Is this permissible?  

Q: Can and imaam put on a short sleeve jubba to perform salaat in jama'ah?