Dear Nairalander family,
Good day to everyone, I'd like to make an enquiry on behalf of my brother who was sent an invitation by an American friend. The purpose for the invitation is for him to join him with his wife and son in a Church ministry as stated in the letter. I'd like to know what type of visa he should apply for and what documents he needs to present. He works as a Customer Service Representative while the wife owns a shop.

Thanks