Interesting Driving for Dollars Trend

[Thomas Garza]

My wife and I have spent the last could days driving around our neighborhood looking for properties that are damaged or abandoned. While driving around, we noticed a trend that 40% - 50% of the houses we wanted to send a letter to didn't seem to have an address posted on their property. Has anyone else noticed this before? Do you think that it would be worth the effort to track down their address and send them a letter?