Taking over another attorney’s active case is one of the more underappreciated risk situations in Wisconsin legal practice. It looks straightforward on the surface. Client needs a new lawyer, you step in, case continues. However, the successor counsel inherits far more than a file box. They inherit timelines, strategic choices, potential errors, and gaps in documentation that may not become visible until something goes wrong.
And when something does go wrong, the question of who is responsible gets complicated fast. That’s part of why having the right professional liability insurance coverage in place before you accept a case transfer matters more than many attorneys initially realize. But coverage is only one piece of the picture. The other piece is knowing what you’re walking into before you sign on.
The File Review Step That Many Lawyers Rush Through
Attorneys might do a quick scan, confirm the basics, and move forward. That’s understandable. Clients are often anxious for continuity, and there’s real pressure to get up to speed quickly. But rushing the file review is where malpractice risk starts to build.
When we talk about a thorough file review, we mean something more than skimming the pleadings. You want to map every deadline that has passed, every deadline that’s coming, and every deadline that should have been set but isn’t documented anywhere. In Wisconsin, legal malpractice claims can arise from missed deadlines that the original attorney created and the successor attorney failed to catch. The client’s harm is the same either way, and the question of which lawyer bears responsibility is something courts and insurers sort out after the damage is done.
Look specifically at statute of limitations questions on any underlying claims. Look at court-ordered scheduling deadlines in the county where the matter is pending. Look at whether any extensions were granted and whether those extensions were properly documented. If the file is thin on documentation, that’s information too.
Conflicts of Interest Don’t Always Announce Themselves
Wisconsin law generally requires attorneys to evaluate conflicts of interest before accepting any new representation. When you’re taking over from another lawyer, that obligation doesn’t change, but the complexity often does.
Consider a scenario: a litigation matter in Brown County where the departing attorney previously represented a related party in a different capacity. You may not know that relationship exists until you’re deep into the file. Or imagine a business dispute where the original attorney’s firm had a prior engagement with the opposing company. These things surface, and when they do, the successor counsel who failed to catch them faces real exposure.
Wisconsin’s Rules of Professional Conduct for Attorneys place the duty of conflict screening squarely on each attorney who takes on a representation. Running a conflicts check against your existing and former clients before accepting the transfer is not optional. It’s the kind of step that feels procedural until the day it saves your practice.
What the Prior Lawyer Did (or Didn’t Do) Is Now Your Problem
This is the part that catches some attorneys off guard. Taking over a case does not insulate you from liability that flows from the prior attorney’s work if you then adopt, ratify, or build upon that work without adequate scrutiny.
You are not automatically responsible for every mistake the previous attorney made. But if you rely on faulty legal research the prior attorney produced, or if you proceed with a litigation strategy built on a flawed foundation and never independently assess it, courts may view your conduct as contributing to the client’s harm.
This means reviewing prior work product critically rather than deferentially. It means forming your own view of the case’s strengths and weaknesses. And it means communicating clearly with the client about what you’ve found, what you’ll be doing differently if anything, and what the realistic path forward looks like. Poor communication between attorneys and clients is one of the more common threads running through malpractice claims in Wisconsin. When you’re the new attorney, clear communication from the very beginning sets a foundation that protects both the client and you.
File Transfer and What Wisconsin Ethics Guidance Actually Says
Under Wisconsin’s professional responsibility framework, the client’s file belongs to the client. The State Bar of Wisconsin’s Standing Committee on Professional Ethics has addressed this directly: the prior attorney is generally obligated to surrender the file upon request of the client or successor counsel upon termination of the representation,, and successor counsel is treated as an agent of the client when requesting that file.
In practice, file transfers don’t always go smoothly. The prior attorney may be dealing with a fee dispute, may be unresponsive, or may provide a disorganized collection of documents that doesn’t reflect the full history of the matter. As successor counsel, you need to push for a complete file and document any gaps. If the prior attorney withholds materials improperly, Wisconsin’s ethical framework provides avenues for addressing that, though the process takes time you may not have.
Deadlines Don’t Pause During the Transition
Courts in Wisconsin do not generally extend deadlines simply because a client changed attorneys. Scheduling orders in circuit courts across the state, from Waukesha County to La Crosse County, run on their own timelines. If a summary judgment deadline is approaching in three weeks, the fact that you just received the file two days ago is not a basis for automatic relief.
When you accept a case transfer, you need to immediately calendar every known deadline and assess whether any emergency motions for extension are warranted. In some situations, filing a motion to extend based on the change in counsel is reasonable and courts may grant it. But that motion needs to be filed promptly, with clear explanation, and before the deadline, not after.
Protecting Yourself Going Forward
Taking over another attorney’s case can be the right thing to do for a client who genuinely needs continuity of representation. We’re not suggesting otherwise. But the risk profile of successor representation is meaningfully different from opening a new matter from scratch, and your practice management approach should reflect that.
Thorough file review, a proper conflicts check, a written engagement agreement, documented communication with the client about the state of the matter, and appropriate malpractice coverage all work together. No single step eliminates risk entirely. But each one reduces the chance that a difficult situation becomes a devastating one. Wisconsin attorneys who approach case transfers with this kind of structured care tend to navigate them far better than those who treat the handoff as routine.
At Wisconsin Lawyers Mutual Insurance Company, we work with attorneys across the state who face exactly these situations. If you have questions about your coverage as it relates to taking over an existing matter, we encourage you to reach out before you sign the engagement letter, not after.