Opening a second office is genuinely exciting. Whether you are expanding from Madison down to Milwaukee, adding a location in Green Bay to serve clients along the Fox River Valley, or planting a flag somewhere between Wausau and La Crosse, growth is a good thing. But in our experience, the insurance question tends to get pushed to the back of the to-do list, somewhere behind the lease negotiation and the furniture order. That can create real problems.
Wisconsin generally does not require attorneys to carry legal malpractice insurance. That said, the State Bar of Wisconsin considers maintaining coverage a professional best practice, and most clients and referral sources expect it. If you already carry a policy, understanding how your professional liability insurance responds when your firm grows is one of the more important risk management conversations you can have. And when you open a second office, that conversation becomes urgent.
Does My Current Policy Automatically Cover a New Location?
This is the question we hear most often, and the honest answer is: it depends on your specific policy language. Most legal malpractice policies are written to cover the named insured firm and its attorneys, not a specific physical address. So in many cases, the work your attorneys do out of a second office may technically fall within your existing coverage. But “may” is doing a lot of work in that sentence.
The more relevant issue is whether opening a second location constitutes a material change to your firm’s risk profile. Adding attorneys, expanding into new counties, or bringing on staff who work out of a separate location can all affect how your insurer views your exposure. Some carriers treat a new office as a straightforward administrative update. Others may view it as a significant enough change to warrant a policy endorsement, a coverage review, or a premium adjustment. You genuinely will not know until you ask.
To clarify: we are not saying your coverage disappears the moment you sign a second lease. What we are saying is that assuming your policy covers everything without verifying it first is a risk no attorney should take. Read your policy. Then call your carrier.
What Changes When You Expand Into a New Part of Wisconsin?
Geography matters more than most attorneys realize when they are scaling up. If your second office is in a different county or circuit, you may start handling matters in courts you have not regularly appeared in before. Dane County practice looks different from Waukesha County practice, and Milwaukee County courts operate on a rhythm all their own. That shift in practice context can bring new risk exposures.
Firm growth through adding new office locations, expanding into additional practice areas, or bringing in new attorneys may require law practices to update their insurance coverage. If your second location means you are now serving clients in a practice area you were not handling before, or handling matters at higher dollar amounts than your existing limits were sized for, that is a coverage gap waiting to happen.
About those policy limits… this is where attorneys often underestimate their exposure. A policy that was sized for a solo practice or a small two-attorney firm in one location may not reflect the risk profile of a multi-location firm with additional staff and a broader client base. Changing your policy limits at renewal is standard practice. But if you open a second office mid-policy-year and something goes wrong before renewal, you want to know your limits were appropriate going in.
What Should You Actually Do Before Opening That Second Office?
Contact your malpractice carrier before the lease is signed, not after. This gives you time to understand whether your current policy requires an endorsement, whether your limits need adjustment, and whether your carrier has any questions about the new location or the attorneys who will work there.
A few things worth reviewing with your carrier or coverage advisor before you open the doors:
Whether the policy covers all attorneys who will work out of the new location, including any lateral hires you bring on to staff it. Whether your policy’s definition of the named insured firm extends cleanly to a second office operating under the same entity. Whether your current limits are adequate given the firm’s expanded size and caseload. And whether your carrier needs to be notified formally in writing of the change.
Most legal malpractice policies are claims-made-and-reported policies, meaning the claim generally must be made and reported during the applicable policy period, subject to the policy’s terms and retroactive date. That structure makes it especially important to keep your carrier informed of changes to your firm. A gap in notice or a lapse in accurate policy information can create complications if a claim arises from work done at the new office.
Growth Is Worth Protecting
Expanding your practice is a real achievement. Attorneys who build multi-location firms in Wisconsin are serving more clients, often in communities that genuinely need accessible legal help. Protecting that growth with the right coverage is not a bureaucratic formality. It is how you make sure a malpractice claim at one location does not threaten everything you have built across both.
We work with Wisconsin attorneys at every stage of their practice, from solo practitioners in their first year to established firms with offices across the state. If you are planning to open a second location and want to talk through what your current coverage actually covers, we encourage you to reach out before the moving trucks arrive. Early conversations prevent the kind of coverage surprises that nobody wants to deal with after the fact.