Exchanging Up!: How to Build a Real Estate Empire Without Paying Taxes is a real estate investment guide focused on using Section 1031 exchanges to defer taxes while growing a real estate portfolio. Gary Gorman explains ...Exchanging Up!: How to Build a Real Estate Empire Without Paying Taxes is a real estate investment guide focused on using Section 1031 exchanges to defer taxes while growing a real estate portfolio. Gary Gorman explains exchange strategies including reverse exchanges, construction exchanges, improvement exchanges, and build-to-suit transactions, with the goal of helping investors leverage tax laws to accumulate larger and more profitable investment properties over time.