Sweetheart deal for Sen. Feinstein's husband

The US has entered into an exclusive contract with a real estate firm to sell 56 buildings that currently house U.S. Post Offices.
The sale of these properties will fetch about $19 billion.
A regular real estate commission will be paid to that company.
That company is CRI
CRI will be making a minimum of 3% and as much as 6% commission on each and every sale.

CRI belongs to a man named Richard Blum.
Richard Blum is the husband of Senator Dianne Feinstein

Senator Feinstein and her husband stand to make a fortune from these transactions. (EST at between $950 million and $1.1 billion!!).
How does a U.S. Senator from San Francisco manage to get away with organizing and lobbying such a sweet deal?
Has our government become so elitist that they have no fear of oversight? Isn't this a cousin to insider trading?

DRAIN THE SWAMP!