Itīs been a while since I did my initial training. I offer what I know.
I am not sure of the number of schools able to provide flight training towards an FAA certificate.
In Ontario, I think of, perhaps, Toronto Airways, ATR in Toronto Island or any other close to the border in Niagara.
I know for sure that in Quebec, the Montreal Flying Club used to have the possibility of converting a canadian license to an American one.
In Montreal you can Train and live in english if that is what you are looking for. I know enough people who work and live in English in Montreal. They are all pilots.
You can also learn french if you wanna meet interesting chicks. But as far as FAA training pertains, i recommend you take Transport Canada training instead. It is highly valued and you can always write the writen exam and hire an examiner at the end, south of the border, which will add your FAA certificates to the gamble.
Hope this helps.
Good luck
Julio