The two components that drive this are marketing; media, message, and frequency as well as determining the fail safe number.

In my mind there are two components of the trust issue:1) Will the wholesaler dedicate his full attention and efforts to leads?

Here are two of the components that mater. 1) can their readers read the address...

There are more complex components to direct mailing than I originally thought.

By the time it reaches the tax sale, the property has often been vacant for many years, with all the electrical, plumbing, and HVAC components having been stolen. 

To add to my response above to Bob, and just for completeness, let me add that I can be convinced that any product that includes a service component shouldn't necessarily offer a full refund.

Unrecaptured Sec 1250 gain is taxed at a flat 25%, and is the amount of gain attributable to depreciation taken on the building component.

@Aaron Hoak a sale can be boiled down to three major components 1) location 2) condition 3) and price.

As you may know, most septic systems have 2 main components -the septic tank (usually split into 2 parts) and the leachfield (where the wastewater percolates downward from the leach lines/pipes).

Find the age of every main component.