My question is in two parts.

Part 1 – How do I determine if the Ayatullah I am following has the best knowledge in this field. Eg how do I know if Agha Seestani is the most knowledgeable in the field of mut’ah.

Part 2 – Does the girl, if she’s a virgin, needs the permission of the father to have sexual activities apart from intercourse?

1. You will determine who is the most Learned by asking great scholars who are well versed with Islamic jurisprudence. Discuss this with your resident Alim
2. Yes, she require permission.