Because the Spark product (Pre-Packaged R&D) is quite expensive and because it requires a significant commitment of time and manufacturing resources by the customer, as well as long term dedication, the relationship must be founded on confidence. First by building confidence with the customer that A good patent attorney relationship will be required to perform the following functions:

The customer having confidence in Spark abilities.
The customer having confidence that the product is developed well.
The customer having confidence that Spark will support them as needed going into production.
The customer having confidence in the marketing research showing upside potential and duration.
Spark having confidence that the customer will perform to the contract.
Spark having confidence that the customer will do their best to market and sell volumes of the product as hoped.

The Confidence and Trust portions of the relationship are important on both sides of the equation.