Might help to look at things from a more creative side than technical steps as an equation, real estate is a science as well as an art, look to the art side

Hand written letters or printed...I simply do not get this.People need to think and ask use logic into deciphering this.Once you do, you WILL be successful if you just have half a brain, honestly.Once you let analisis and logic decide and answer these questions, THEN you send out mailers and you TEST the results, and you use an open feedback loop to fine tune the campaign.This is how you run experiments in science, engineering... in life.More likely than not ,you will inherently be unique and original in your campaigns simply because NO ONE thinks on their own.