Aqaaid

Doubting the Imaan of people

Q: In America there are a lot of people that are converting to Islam. Sometimes I get the doubt that some of them are just acting like they converted but they are actually munafiq like there were munafiqeen in the time of the Nabi (Sallallahu Alaihi Wasallam). Is it wrong to doubt the iman of a Muslim if he is a Muslim zaahiran?

Studying Deen independently

Q: Is it permissible to seek knowledge about Deen on the internet and have it verified by a scholar of Deen via WhatsApp or email? I'm in contact with shia and salafi scholars, each one of them says the others Hadeeths are weak and not to be trusted. However I do my own research but I don't know amongst the two who is correct. I listen to many of Mufti Menk lectures and Dr Naik and I learn a lot from them alhudulillah but I still do my research on internet. Because I don't know the scholars around here are maybe misguided. Please advise me. 

Aayatul Kareemah khatams

Q: What is the status of Aayatul Kareema Khatams? The Aayatul Kareema zikr is recited many thousands of times at these khatams. Sometimes a hall is hired for these khatams and invitations are sent out encouraging women to attend. I have faith in zikr, but are these khatams established from the Sunnah?