Characteristic:

1.	Return on investment fluctuates according to the condition of US economy, due to rental occupancy highly determined by expansion or contraction of corporate America.
2.	Due to long term leases (10 to 20 years), a low variation on income projection is expected.
3.	Return on investment (not including future appreciation value of the real estate), we usually expect 7% to 16% annually.
4.	Every year, we increase base rent according to Consumer Price Index (or 3% to 5%)