A reported bidder for the GM Building, Joseph Cayre, is not usually mentioned in the same breath as the usual real estate bigwigs (Jerry Speyer, Steven Roth, etc.), but the investor is hardly a small player. The Wall Street Journal’s Jennifer Forsyth brings us the news today that Mr. Cayre was one of at least three bidders offering more than $3 billion for Harry Macklowe’s GM Building at 767 Fifth Avenue; Larry Silverstein was another.  read more »