One of the most rewarding parts of patent law is the disclosure interview. This is where a good patent agent/attorney can add value far in excess of the fees collected.
A good disclosure interview is an opportunity to shape the invention into something that makes sense for the business as well as sets the proper expectations for the inventors. A good disclosure meeting is also brutally exhausting if done well.
I do all of my patent cases for a fixed fee. Because of this, I need to be efficient and thorough at every step. I view the disclosure interview as the most essential step that helps me do the highest quality work for a reasonable price.