Thanks for all your replies! I finally arrived in canada. The visa officer didnt stamp my passport with a date, which means i have 6 months to stay here, according to the canadian immigration website. So, I can stay here until August 4th.
Welcome parruda,
I'll try to answer what I know.
Outland is generally faster (and São Paulo is listed as 10 months). Since you are Brazilian, if you would like to apply outland, you should apply through there. Unless you have US citizenship, I dont see how you could apply outland through Buffalo (not totally).
You can apply outland even if you are in Canada. Coming in and out of Canada is risky, specially with Inland as your application could be totally cancelled. Even with a multiple entry, once they know that you have applied for permanent visa, they may refuse re-entry. A visa is not a right, its a permission at each time you cross the border.
About the visitor visa extension, once you are in Canada and have an application filed, you can extend the visa.
I hope that helps!
leroadrunner, since you are brazilian and lives in canada, while applying outland, I think we are in the same situation

I entered the country with a tourist visa. Right now I am in Fredericton, and maybe we will be moving to halifax until september, when we need to go to Ottawa cos my wife will start school (she is canadian).
After reading about it, we decided to try to apply outland.
Before leaving Brazil, i went through all the medical exams, since i had a health insurance plan, to save some money! So, the clinic in brazil has my exams there, waiting for me to tell them to send it.
Im a bit confuse with this Outland procedure. After gathering all documents, filling all forms, do i need to send it to são paulo or somewhere else??
I know i will have to apply for a visa extension. Is it difficult to get? Should i send it with the sponsorship application to wherever i need to send it?
One more question: since im moving around, first to halifax, then ottawa, but now im in fredericton, is there any difference in the process? I have a permanent address here in Fredericton and in Halifax, but in ottawa we would have to rent a place, so i cant give any ottawa address in the application.
Sorry, but as you can see, im full of doubts, and we are scared to have to be apart while we wait to this whole process.
If anyone wants to call me, my phone number is 506 261 4768.
Thank you guys!