Sometimes the last 5 or 10 percent of the job is the hardest to complete, and the most expensive per item. You think that you have reached substantial completion and want to come to an understanding about what is left to be done for final completion and final payment.
I remember the first time I had to read specifications. They were part of the bid documents for a new Bank of America building. My boss walked in my office one morning, dropped a specification book on my desk and said, “Here, read this.” Talk about being thrown into the deep end.