As Allaah says in the Qur'an, "The world is never void of His representative". According to the Faatemi Isma'ili Taiyebi belief, Imaam Taiyeb (as), the 21st Faatemi Imaam who was a direct descendent and the progeny of Rasoolullaah (saws) went into seclusion in the Hijri year 526 A.H. The imaamat always exists in this progeny from father to son till the day of Qayamat. Imaam uz-Zamaan (as) is present but in seclusion. He will reveal himself to us as decreed by Allaah on him.
There are none in the direct line, since he had no surviving sons; however, there are many who claim descent through his daughters.
Yes
Muslims following the Shia doctrine of Imamah believe that the Imams are infallible. They see the Imams are the rightful successors of the prophet Muhammad and believe them to have divine authority.
According to the Shi'a Muslims, the twelve Imams were all Ahl al-Bayt and never committed sins.
Muhammad (PBUH) and Imams like Ali (PBUH) and Imam sadiq (PBUH)
Bibi Fatima, and through her would be the Shia's 12 Imams, that are all descendants of the Prophet.
This sect of Islam is known as Shi'a Islam, who believe the rightfully chosen followers of Muhammad were the 12 imams, who were from the family of Muhammad.
Nothing in particular, but if it is a prophet, it is "alaihiisalam (as), and specially for the Prophet Muhammad (saw) it is "sallalahu-allaihwassalum (saw)." Missionaries are called Imams.
It was narrated by Imam Ja'far as-Sidiq that Abu Bakr received the title of Sidiq directly by Muhammad, which shows that the Shi'a imams at the time showed respect for all companions of Muhammad (S).
twelve Imams in Islam
Moslems, I added some further information about Imams: The prayer leader of a mosque. A Muslim leader of the line of Ali held by Shiites to be the divinely appointed, sinless, infallible successors of Muhammad. Any of various rulers that claim descent from Muhammad and exercise spiritual and temporal leadership over a Muslim region
Kaaba, tomb of prophet Muhammad (PBUH) and tomb of some of 12 Imams and other holy places like mosques and etc.
Good common sense and access to the one true and living GOD they're allowed to get married.
With the name of almight Allah; leaders of Islam are Muhammad (last prophet of God), his successor Ali (first Caliph/Imam of Islam) and then progony of Ali (Imams).