The wife of my brother is now in process of permanent residency in Canada. She entered Canada as happily married with kids whom she'd left in the Philippines.However, during her stay in Canada as a contract worker, she had an affairs with several men and now currently living with a Canadian guy. My brother has now already moved-on with what happened to him and currently have a common-law-partner in the Philippines. His wife (not yet annulled in the Philippines) wants to include their kids on her application for PR but my brother strongly refusing the intention. Can my brother do reporting to the immigration about the infidelity of his ex-wife so she could not be able to obtain a permanent residence status as he really wanted to get an annulment first with her and settle the custody of their children. If yes, how to report that to Canadian immigration?