Does it matter that you're presumably Canadian and your agent is in the states? Like have your books been available in the US market before they're here in Canada? I was thinking about this and am kind of curious as to how it works.
Nope! Doesn't matter AT ALL. The only thing is once you get a book deal, you have to apply for an American ITIN in order to get paid, as part of your taxes will now have to go to the IRS, too. And you'll probably need an accountant come tax time.
My debut is ebook first, so it is world rights (coming out all over the world the same day), but print works the same for Canadians as it does Americans. Based on the rights purchased, it usually comes out Canada/USA at the same time, then your agent (or their foreign agent at the agency) will try to sell the foreign rights to other countries.
And it made no matter to my agent I am Canadian. She has lots of other Canadian clients. In fact, some of them were kind enough to walk me through the tax process and applying for my ITIN.