My wife is first time pregnant and we are in a situation where my close relatives cannot travel to Canada due to health/other issues. My wife's mother had passed away when she was young. She has a step mother who cannot travel to Canada as she is taking care of a physically disabled kid. However, the mother of step-mother has volunteered to come to Canada and provide emotional support during pregnancy. This nice lady has family but does not have any major financial assets to show strong ties back home. Can anyone suggest/recommend if there is a way we can invite her here for 3 months. And what are the documents that we should provide for applying for TRV.