I found this great site call netronline and u can look at private information like their deeds all I need is there street number and name and can look at their square footage and their whole name.... this is the question I am a painting contractor and work for a prestigious builder in the area and have done work around the area would it be appropiate to do my research on the square fottage and just make like a list of the houses that need some maintance and send them a letter describing what I can do and the services that I provide I plan to do this on a massive scale? but dont know if the customer would be like ? where did he get this information?