I would like to apply GC for my sister who is unmarried with 2 children, right now she lives with her boyfriend and might get married in a few years. In this case, if i apply for my sister who is unmarried and in the future before her approval of GC she happens to be married, will her GC get denied or affect any decision of GC approval? Will she be able to come here with her future husband and her kids? What kind of form to inform them that her status has changed? Thank you for all answers.