Key Person Clause Gains Attention as Construction Staffing Risks Grow

“The cemeteries of the world are full of indispensable men.” — Charles de Gaulle

With all due respect to the General, he clearly never ran a construction project. In construction, the person running your job matters. It’s the project manager who sat in your preconstruction meetings, understands the phasing, knows why the MEP coordination sequence was set up the way it was, and has relationships with your team and the Owner’s team. That project manager isn’t easy to replace or switch out, so if they disappear six weeks into the job and get replaced by someone who’s never read the drawings, problems are likely to pop up.

It happens all the time – contractor or consultant sells the A-team during the proposal and interview, then those people quietly get moved to a larger project once a contract is signed. It’s typically not intentional, but out of necessity. Maybe a fire happens on another project, and they are needed to put it out. Then companies bring in the B-team (or worse, the D-team) without notifying the customer of the change. And by the time you realize it, the job is three months in and the damage is already underway.

This is why every job needs a “key person provision” listed in a contract, but it’s something that is drastically underutilized across the industry.

What Is a Key Person Provision?

A key person provision is a contract clause that identifies specific individuals who must remain assigned to the project, and it sets conditions around their removal or replacement. Basically, it turns a handshake expectation into an enforceable obligation. The concept is simple – you hired this company in part due to who they were putting on your project. The key person clause says those people stay, or we have a conversation about it before anything changes. In its most basic form, a key person provision does three things. It names the key person or persons. It restricts the other party from removing or materially reducing their involvement without consent. And it establishes what happens if the key person is removed anyway.

How a Well-Drafted Key Person Clause Works

A good key person provision is not complicated. But it needs to be specific enough to mean something when it matters. Here’s a good way to structure them:

1. Name the individual. The clause should identify the key person by name and role. “Subcontractor’s Authorized Representative” is fine as a defined term, but somewhere in the contract (usually in an exhibit or the signature block), there should be a real name attached.
2. Require continuous assignment. The clause should state that the named individual will remain actively and continuously assigned to the project, actively working on the job. The language should cover both outright removal and the quieter version of the problem: materially reducing the person’s level of engagement. Moving someone from full-time to “available as needed” is a reduction that should trigger the provision. It is good practice to have objective requirements here.
3. Require prior written consent for changes. If the other party wants to remove or reassign the key person, they need your written consent before the decision is final, not after. This gives you a seat at the table and forces a conversation before you lose the person you’re counting on.
4. Set replacement standards. People leave. That’s reality. A good key person provision acknowledges this by allowing replacement, but only with someone with comparable qualifications and experience, subject to your review and approval.
5. Establish consequences for breach. This is the piece most people miss. A key person provision without a consequence is a request, not a requirement. The strongest version treats an unauthorized removal as a material breach of the contract, which gives you real leverage – the right to withhold payment, pursue damages or terminate. You may never exercise those rights. But having them changes the dynamic entirely.

A Powerful Risk Allocation Tool

Key person provisions are underrated because people think of them as soft clauses. They’re not about money or scope or schedule, so they are treated as less important. A key person provision does something that most contract clauses don’t: it aligns expectations from day one. When you negotiate and sign a key person clause, both parties acknowledge, in writing, that the specific people assigned to this project matter. It means the other side can’t later claim that a staffing change is routine or immaterial, because the contract says otherwise. It also protects preconstruction assumptions. 

If you selected a subcontractor based on the qualifications and experience of the team they proposed, and that team changes materially, the basis for your selection has changed. The key person provision gives you a mechanism to address that before it creates problems on the jobsite. It makes a contractor think twice before making a big change.

Addressing the Pushback

It’s typical to get pushback on a lot within a contract, and the key person provision is no different. The most common objection is: “We can’t guarantee that a specific person will be available for the entire project.” Fair enough. People get promoted, leave the company, have health issues, etc. Life happens. A well-drafted key person provision simply requires consent before a change and/or a commitment to provide an equivalent replacement.

The second objection is: “This limits our operational flexibility.” Yes, it does, but that’s the point. When hiring a contractor or consultant based on a specific team, you’re paying for that team. The key person provision makes sure you actually get what you’re agreeing to. If the other side views that as an unreasonable constraint, it could be a red flag altogether.

The third objection, usually unspoken, is that the company knows they routinely move people between projects and doesn’t want to be contractually prevented from doing so. That’s exactly the behavior the provision is designed to address. The fact that someone resists a key person clause is useful information during the selection process.

The Bottom Line