My parents owned a condo in Florida for a number of years. My father, who was a lawyer, did all his own research prior to purchase--I remember he was terribly shocked at the cost of health insurance in the US, should he consider a permanent move. From our experience of selling the condo after my father's death, my own recommendation would be that you hire an accountant familiar with US taxes to complete your tax forms for at least your first year of ownership of a foreign property.
I did a very quick search online at the Service Canada website. They offer access to a pamphlet from the Canada Revenue Agency, pamphlet #P151, "Canadian Residents Going Down South", that discusses the tax implications in both Canada and the US. You would also need to check your provincial health dept. website to find out about healthcare coverage.