About a month or two ago I was meeting with one of the floor owners who purchased the 11th floor among others -- I went in one of the offices where some of the street facing windows were replaced 7-8 years ago and there was about a quarter to half inch gap at the bottom of one of the window frames where you could see daylight outside....Not sure if this had anything to do with the building shifting, if the window was installed incorrectly, if maybe the building had shifted that much over the years and just needed extra caulking etc.  

If there is even an inch of impropriety, you can bet there will be more.

You could do a four inch solid cement block and a smaller window3.

We have mudjackers here who drill 2 inch holes and pump under pressure low percentage cement/sand mix to lift the concrete back up and support it... only if the structure isn't out of level.  

You can just cut out that plywood or OSB (make sure the saw blade depth-of-cut is only slightly more than the thickness of the floor sheathing, usually 3/4 of an inch or a little more) in that area and replace it.

There's a chimney on the end of the house that has pulled away an inch and a half at the roof.

You give some people an inch and they will take a yard.

You have to watch yourself working with them and monitor to make sure they aren't getting an inch and trying to take a mile. 

Gas is cheap now but in the last week it has started inching up and it may not stop soon.   

We've had 15 showings in 10 days (high for here), despite six inches of snow.