No I'm afraid not, B visitors are typically allowed in for a maximum of six months a year, however as there is no I-94 requirement for Canadian citizens, it's based on "duration of stay" to determine your non-immigrant intent, so if you stay for say, seven months but leave for a fair amount of time they're not likely to deny you re-entry.
They're more interested in your having non-immigrant intent than how long you stay, although if you pointedly ask the question they will say six months max. To have non-immigrant intent by law you must have an abode abroad and sufficient funds to cover your visit.
Florida law specifically caters to Canadian snowbirds, in that you can get a Florida DL merely as a Canadian citizen, so if you're only planning on driving in Florida and not in Canada anymore it is possible to swap you licence over.
Another thing to bear in mind is that you cannot get the homestead exemption. There may be a lot of foreclosed homes in Florida but as you don't qualify for it, bear in mind
taxes will be quite high (and will go up rapidly as the market recovers). Florida has no State income tax and makes up for it by having property
taxes and if you're not resident they really hammer people who don't qualify. Florida specifically cracked down on who qualified for it a few years ago and now only US citizens and LPRs qualify, even if you have a work permit you don't qualify for it.
My advice to people in this situation is to go to a State that has low property
taxes, because you don't work so there are no income
taxes. California is probably the best example, but there are others.
Steve.