Visiting Canada?

If Richard & I were to theoretically come to Toronto sometime in February (let's say, Wednesday 12th until Sunday 16th or so), do we:

a) have friends available who can meet us for dinner and/or weekend wandering

b) know anyone with a spare room (that isn't more than one flight of stairs above the entrance floor)?

He just got back from Montreal today and he has to go back out there in a couple of weeks, and we're thinking I should tag along for some of it and have a holiday afterwards.