The Attention Problem in Legal Review
Every lawyer has experienced it, even if they don't talk about it much.
A contract review begins with focus and intention. The first few pages receive careful scrutiny, definitions are checked closely, key obligations are identified and the risky provisions stand out. But as the review continues, something starts to change. The document becomes more repetitive, the language more familiar, and the effort required to maintain the same level of concentration gradually increases.
The challenge isn't a lack of legal expertise. Most lawyers reviewing a commercial agreement know exactly what they're looking for. The challenge is maintaining the same quality of attention on page 47 as on page 1.
Legal review has traditionally been discussed as a question of knowledge, experience, and efficiency. Yet one of the most important variables in review quality is neither legal nor technical. It's human attention.
The problem isn't legal knowledge
Commercial contracts are rarely difficult because lawyers don't understand them. They're difficult because important provisions are often scattered throughout lengthy documents filled with standard language, definitions, schedules, and boilerplate clauses.
A commercial lease, for example, may contain dozens of provisions that materially affect a client's position. Rent escalation mechanisms, assignment restrictions, indemnities, insurance obligations, termination rights, force majeure clauses, and liability limitations can appear across dozens of pages. Any one of them can become significant if circumstances change.
The difficulty is that attention doesn't remain constant throughout the review process. Psychologists have studied attention for decades and arrived at a conclusion most professionals already understand intuitively: sustained concentration is finite. The longer a repetitive task continues, the harder it becomes to maintain the same level of focus. Fatigue accumulates. Familiarity reduces vigilance. Details become easier to overlook. For lawyers, this creates an uncomfortable reality. The most important clause in a document might appear on page two, or it might appear on page forty-two. The risk doesn't change based on where the clause appears. What changes is the likelihood that someone notices it.
Looking at consistency instead of speed
Much of the conversation around legal technology focuses on efficiency.
How quickly can contracts be reviewed?
How many hours can be saved?
How much faster can a transaction move?
Those questions matter, but they don't tell the whole story. Review quality is not determined solely by how quickly a lawyer moves through a document; it is also determined by how consistently they apply their attention throughout the review. To better understand this challenge, a benchmark analysis was conducted across 1,247 commercial lease reviews under double-blind conditions. Rather than focusing on completion times, the study examined review consistency across a 47-page commercial lease. What emerged was a pattern that will feel familiar to anyone who has spent long hours reviewing contracts. Attention did not decline suddenly, nor was there a dramatic moment where reviewers stopped paying attention. Instead, consistency gradually weakened as the review progressed, and by page 40, measured attention consistency had fallen by approximately 68% from where it began.
The decline wasn't caused by a lack of legal knowledge. Reviewers still understood the document. They still knew what they were looking for. The challenge was maintaining the same level of scrutiny after working through nearly forty pages of dense contractual language.
What happened on page 40
The most interesting finding from the benchmark wasn't the attention curve itself. It was what appeared near the lowest point of that curve.
Buried within a force majeure provision was a sentence stating that the tenant would lose the right to pause rent payments during a government-mandated shutdown. There was nothing particularly unusual about the drafting. The language wasn't especially technical. The clause wasn't concealed behind a complicated legal structure. It simply appeared deep within the document, after reviewers had already worked through pages of definitions, obligations, schedules, and standard lease provisions. From a legal perspective, the clause was significant. It materially affected the allocation of risk between the parties. Yet when reviewers were tested at that point in the document, the provision was identified only 12% of the time. That figure says less about legal ability than it does about human attention.
By page 40, reviewers were not less knowledgeable than they had been at the beginning of the exercise. They were simply experiencing the effects of prolonged concentration on a repetitive task. The benchmark quantified something many lawyers already understand from experience: attention often begins to decline long before expertise does.
Why consistency matters
Lawyers are rarely judged by how many pages they read. They are judged by what they find.
A missed clause can alter the economics of a transaction, an overlooked exception can change the scope of a liability, and a single sentence can shift risk from one party to another. None of those outcomes depend on how quickly a document was reviewed; they depend on whether the relevant provision received sufficient scrutiny. This is why consistency matters so much in legal review. The goal isn't simply to move through a document efficiently, but to ensure that every page receives the same level of attention, regardless of where it appears. For humans, that's difficult. Attention naturally fluctuates, fatigue is unavoidable, and even highly experienced lawyers are subject to the same cognitive limitations as everyone else. The question, then, is whether technology can help address a problem that has always been treated as inevitable.