The default visitor visa is for 6 months. So I booked the ticket to show a return flight thinking they would like to see that as proof of return. we did proof of funds, their businesses, and all the other requirements. Canada is beautiful, we would of course take them around to show them our country which is so different than Nigeria. The one lady has known my wife for 20+ years, and the other is her good friend through the church. Of course we have been donating used clothing, rented their house they are currently staying, etc; the sort of things friends do for eachother