We are about to send in our application for spousal sponsorship (I am sponsoring my husband) but I need to apply for a visitor extension for him again. This will be his second visitor extension application. Should I mention that he is planning to immigrate here or is it necessary that I share those details. Do I just tell them that he wants to stay here longer with his wife? What do other people say in their "letter of explanation" for visitor extensions during the immigration process? I am just not sure what I should or should not do.