Sunni

One valid Nikah is enough and no need to repeat after being sure that it was recited properly according to Shariat.

'It is important to note that if there is a possibility of harm on your faith or religious practice now or in the future , then such Nikah should be avoided.

Wassalam.

Many people promise before marriage to embrace Islam or Shia Islam after marriage, just to get married with whom they want to marry, but they fail to fulfill the promise after marriage especially after passing years after marriage or after matrimonial misunderstands which are usual between couples. You must be sure the non Shia girl who wants to be married to you is really ready to follow Ahlul Bayt (AS) not for the sake of marriage but for the sake of Allah to a follower of Islam of the Prophet (SAWA) and Ahlul Bayt (AS).

Your parents might have this concern and don't wish to see you in trouble in the future.

'If this girl is ready to follow Ahlul Bayt (AS) for sake of the Truth, she should start following Ahlul Bayt (AS) now and not wait. That should indicate her intentions and might help your parents to believe that she is a sincere person in her promise.

'Wassalam.

We are been ordered by Allah (SWT) in Quran to obey the Prophet (SAWA) and by the Prophet to pray as the Prophet did. This means any Wudhu or worship away from what the Prophet did is invalid. The Prophet never washed his feet in Wudhu but he was always wiping over his feet. Washing the feet in Wudhu was created by some persons long time after the Prophet (SAWA).

Wassalam.

Praying along with any Muslim from any other sect apart from Ahlul Bayt is not only permissible but also recommended.

Wassalam.

This is a jurisprudence issue which is dealt with by leading jurisprudence scholars with detailed evidence from Quran and Hadeeth. Simple person who is not an expert can not understand such special jurisprudence matter. He should be advised to refer to the most learned scholars. You can brief him that we are allowed to deal with non Muslims in the same way that they deal with others and take it as justified.

Wassalam.

If her Fiqh really permits her to marry without her father's permission, then you will be allowed to deal with her in marriage contract according to her own Fiqh.

'Wassalam.

It depends on the situation of your family. If your family members are flexible and open minded and appreciate evidence and believe in freedom of faith, then you can inform them that the authentic evidence guided to to follow Ahlul Bayt (AS). You can also give them some important points which guided you to Ahlul Bayt (As) which can help them not only to appreciate your research for the Truth for your life here and hereafter, but also open their minds to think properly about the Reality of Real Islam of the Prophet and his Holy Progeny.

'If your family members are rigid and closed minded and do not respect evidence nor freedom of faith and want to remain blindly following their fore fathers, then it might be harmful to inform them because it might create enmity and hatred against you.

'Keeping your faith secret is the option of thousands of believers who live in a negative surroundings which can harm them if they disclose. This is called Taqiyya which is mentioned in Quran in many verses. Allah Did Praise in Quran (Sura Ghaafir; verse 28) a believer from Firaon family who was hiding his faith.

Wassalam.

Praying with Muslims from other sects apart from the followers of Ahlul Bayt (AS) is allowed and recommended. Friday prayer leader has conditions including being a pious follower of Ahlul Bayt (AS). You can pray behind non Shia Shaikh and you get the reward of praying with other Muslims, but it will not be a valid Friday prayer, and you must perform your own Dhuhr prayer either before or after.

Wassalam.

All Muslims used to refer to Imam Ali and Fatima Al-Zahra and Imam Hasan and Imam Husain as AS. You can ask your friend to read Bukhari book where he can find  him referring to Ali as AS عليه السلام. Till today, there are big Sunni scholars refer to Ahlul Bayt as AS.

‘We are the real followers of Quran and the Prophet and find in Quran Salaam on true believers and no one doubts that Ahlul Bayt (AS) are the best believers.

Wassalam.

We seek forgiveness for every believer in Allah, the Prophet (SAWA) and Ahlul Bayt (AS). Muslims friends who were born in non Shia families and have high regards for Ahlul Bayt need our prayers to understand the real position of Ahlul Bayt in Islam as the divine leaders after the Prophet (SAWA).

Wassalam.

Yes. This Hadeeth of Ghadeer has been narrated by biggest number of companions who witnessed it and heard it from the Prophet Muhammad (SAWA). It is more than Mutawatir in Sunni books as well as Shia books.

1. Sibt ibn al-Jawazi said in his book Tathkirat al Khawas  (Pg 30 & 31) "All the Ulama of Sirah have unanimously said that the incident of Ghadeer took place when the Prophet (SAWA) returned from Hajjatul Wida when he said in front of 120000 companions : Of whomsoever I am the Maula Ali is the Maula. The full Hadeeth mentions that the Prophet (SAWA) started his sermon "Allah is my Maula and I am the Maula of all Mo'meneen". Then he said am I not more entitled on the Mo'meneen than themselves upon themselves? All said "Yes". He (the Prophet SAWA) : For whomsoever I am his Maula, this Ali is his Maula.

2. Abu Ishaq al Tha'labi mentioned in his Tafseer that when this announcement was spread in different places a man by the name of al Harth ibn al No'man al Fahri came to the Masjid of the Prophet (SAWA) and objected on the announcement of Ghadeer and asked the Prophet (SAWA) : Is it from you or from Allah SWT? The Prophet (SAWA) became angry and his eyes became red and he said : By Allah SWT who is La Ilaha Illahu it his from Allah SWT and not from me.

3. In this Sahih Muslim (Vol 7, Pg 122 & 123) a Hadeeth narrated by Zaid ibn Arqam that the Prophet (SAWA) said in Ghadeer Khum : I am leaving among you two important things ; the first the Book and Allah SWT and my Ahlul Bayt (AS). 

4. Ibn Hajar said : Hadeeth al Ghadeer is definitely authentic and there is no doubt about it. 

5. An Nasai in al Khasa'is narrated from Zaid bin Arqam Hadeeth al-Ghadeer (Pg 39).

6. It was also narrated by al-Mohib al-Tabari in Thakha'ir al-Oqba.

7. Also in ibn al-Maghazili in al-Manaqib (Pg 29).

8. Also al-Muttaqi-al-Hindi in Kanz al-Ommaal (Vol 1 ; Pg 166)

9. Also al-Qurtubi in his Tafseer (Vol 18 ; Pg 287)

10, Also al-Haakim-al-Hasakani in Shawahid-al-Tanzeel (Vol 1 Pg 158)

Many other Sunni books have narrated Hadeeth al-Ghadee with the frase of Allah is my Mawla and I am Mawla of all believers and forwhom soever I am the Mawla, Ali is his Mawla.

Wassalam.