Professional Malpractice Demand Letter - Wisconsin
DEMAND FOR SETTLEMENT - PROFESSIONAL MALPRACTICE
STATE OF WISCONSIN
[FIRM NAME]
Attorneys at Law
[Street Address]
[City, Wisconsin ZIP]
Telephone: [Phone]
Facsimile: [Fax]
Email: [Email]
Licensed in the State of Wisconsin
DATE: [Date]
VIA CERTIFIED MAIL, RETURN RECEIPT REQUESTED
AND FIRST-CLASS MAIL
[Professional's Name or Firm]
[Professional Liability Insurance Carrier]
[Street Address]
[City, State ZIP]
RE: PROFESSIONAL MALPRACTICE CLAIM - SETTLEMENT DEMAND
Claimant: [Client Full Name]
Date(s) of Negligent Services: [Date or Date Range]
Professional(s): [Professional Name(s)]
Type of Professional: [Attorney/CPA/Architect/Engineer]
Claim Number: [If assigned]
Dear [Recipient Name]:
This firm represents [Client Name] in connection with the professional malpractice committed by [Professional Name] during the provision of [legal/accounting/architectural/engineering] services. This letter constitutes formal notice of our client's claim and our demand for settlement.
I. WISCONSIN-SPECIFIC LEGAL FRAMEWORK
A. Governing Law
This claim is governed by Wisconsin common law principles of professional negligence. In Wisconsin, professional malpractice requires proof of: (1) the existence of a professional-client relationship; (2) the professional's breach of the standard of care; (3) a causal connection between the breach and injury; and (4) actual loss or damage. Lewandowski v. Continental Casualty Co., 88 Wis. 2d 271 (1979).
B. Statute of Limitations
Legal Malpractice Sounding in Tort: Wis. Stat. § 893.53 generally requires suit within three (3) years after accrual. Determine accrual under the applicable discovery rule and facts; analyze any contract theory separately.
Other Professional Malpractice: Section 893.53 also generally gives three (3) years after accrual for a non-contract injury-to-rights claim, unless a different period expressly applies. CPA services require special attention to § 893.66, which sets a six-year outside period from the act or omission, subject to its other subsections. Contract claims and claims involving improvements to real property require separate analysis.
Discovery Rule: Wisconsin applies the discovery rule, under which the statute of limitations begins to run when the plaintiff discovers, or in the exercise of reasonable diligence should have discovered, the injury and its cause. Hansen v. A.H. Robins, Inc., 113 Wis. 2d 550 (1983).
Relevant Dates in This Matter:
- Date(s) of negligent services: [Date(s)]
- Date of discovery: [Date]
- Limitations period expires: [Date]
C. Comparative Negligence
Wisconsin follows a modified comparative negligence system under Wis. Stat. § 895.045(1). Compare the plaintiff's negligence separately with each causally negligent person. Recovery against a person is barred if the plaintiff's negligence exceeds that person's; otherwise, damages are reduced by the plaintiff's share of negligence.
D. Standard of Care Under Wisconsin Law
Identify the standard of care for the profession at issue and support it with the applicable profession-specific authority and expert evidence. Hansen v. A.H. Robins, Inc., 113 Wis. 2d 550 (1983), addresses accrual under the discovery rule; it does not establish a professional standard of care.
Attorney Standard: An attorney must exercise "that degree of care, skill, and judgment which is usually exercised under like or similar circumstances by the ordinary, reasonable member of the profession." Lewandowski v. Continental Casualty Co., 88 Wis. 2d 271 (1979).
Accountant Standard: For a Wisconsin-licensed CPA, identify the engagement and the alleged failure to exercise due professional care under Wis. Admin. Code § Accy 1.201(1)(b). For audit work, assess the applicable generally accepted auditing standards under § Accy 1.202. Identify the particular work, departure, causation, and loss; GAAP and auditing standards do not automatically govern every accounting engagement.
Architect/Engineer Standard: Wisconsin's professional conduct rule requires architects and engineers to use reasonable care and competence when providing professional services. Wis. Admin. Code § A-E 8.06(1).
E. Expert Witness Requirements
For a legal-malpractice claim, expert testimony ordinarily establishes the lawyer's standard of care. Assess the need for an expert separately for other professions and issues. Wis JI-Civil 1023.5.
Exception: Expert testimony may not be required when the negligence is so grossly apparent that a layperson could determine it without expert assistance (the "common knowledge" exception).
Certification: We certify that we have retained a qualified expert who has reviewed the relevant materials and has concluded that the applicable standard of care was breached and that such breach proximately caused our client's damages.
F. Damage Caps
Wisconsin does not impose statutory caps on compensatory damages in professional malpractice cases.
Punitive Damages: Wisconsin allows punitive damages where the defendant acted maliciously or in intentional disregard of the rights of the plaintiff. Wischer v. Mitsubishi Heavy Indus. America, Inc., 2005 WI 26.
II. PRESERVATION OF EVIDENCE - LITIGATION HOLD
YOU ARE HEREBY DIRECTED TO PRESERVE ALL EVIDENCE relating to the professional services provided to [Client Name], including but not limited to:
- Complete client files (paper and electronic)
- All drafts and working papers
- Correspondence (including emails, texts, and messages)
- Engagement letters and fee agreements
- Time records and billing statements
- Internal memoranda and notes
- Conflict check documentation
- Any recorded communications
- Professional liability insurance policies
- All versions of documents with metadata
- [For Attorneys:] Case files, pleadings, research memoranda
- [For Accountants:] Work papers, tax returns, financial statements
- [For Architects/Engineers:] Drawings, specifications, calculations, project files
Preserve all relevant records, including drafts, metadata, and related communications. If relevant evidence is intentionally destroyed or withheld when litigation is a distinct possibility, we may seek relief for spoliation. The court determines whether spoliation occurred and whether any sanction or adverse inference instruction is appropriate; neither follows automatically. See Wis JI–Civil 400 (court determination, prejudice, and discretionary remedies).
III. FACTUAL BACKGROUND
A. Professional Engagement
[Client Name] engaged [Professional Name/Firm] on or about [Date] to provide [type of professional services]:
Scope of Engagement:
- [Describe the scope of professional services]
- [Objectives or goals of the engagement]
- [Any specific representations made]
Professional Relationship:
- Engagement date: [Date]
- [If applicable:] Termination date: [Date]
- Fee arrangement: [Hourly/Fixed/Contingency]
B. Chronology of Events
[Date]: [Describe what occurred]
[Date]: [Describe what occurred]
[Date]: [Describe what occurred]
C. The Professional Error(s)
[Describe specifically what the professional(s) did wrong]
D. Discovery of Malpractice
Our client [did not discover / could not have reasonably discovered] the malpractice until [Date], when [describe discovery circumstances].
IV. ELEMENTS OF PROFESSIONAL MALPRACTICE
Under Wisconsin law, a plaintiff must establish the following elements to prove professional malpractice:
A. Duty (Professional Relationship)
[Professional Name] owed a duty of care to [Client Name] arising from the [attorney-client / accountant-client / professional] relationship established on [Date].
Evidence of Duty:
- Engagement letter dated [Date]
- [Other evidence of professional relationship]
B. Breach of the Standard of Care
Applicable Standard: [Professional Name] was required to exercise such reasonable care, skill, and diligence as other similarly situated [attorneys/accountants/architects/engineers] ordinarily exercise in like circumstances.
Based on our expert's analysis, the applicable standard of care required [Professional] to:
- [Standard 1]
- [Standard 2]
- [Standard 3]
Breaches:
Breach 1: [Detailed description]
Breach 2: [Detailed description]
Breach 3: [Detailed description]
C. Causation
"But For" Causation: But for [Professional Name]'s breach of the standard of care, [Client Name] would not have suffered the damages described herein.
Legal Malpractice - Case Within a Case: [If applicable for attorney malpractice:] Had [Attorney Name] properly [handled the matter], our client would have [obtained a favorable judgment / avoided liability / recovered damages of $X]. We are prepared to prove the merits of the underlying claim as a "case within a case." Lewandowski v. Continental Casualty Co., 88 Wis. 2d 271 (1979).
D. Damages
As a direct and proximate result of [Professional Name]'s malpractice, [Client Name] has suffered the damages set forth below.
V. EXPERT OPINION
We have retained [Expert Name], a [licensed attorney/CPA/architect/licensed professional engineer] with [number] years of experience in [relevant practice area]. [Expert Name] has concluded, to a reasonable degree of professional certainty, that:
- [Professional Name] breached the applicable standard of care;
- These breaches were a direct and proximate cause of [Client Name]'s damages; and
- Had appropriate professional services been rendered, [describe avoided outcome].
VI. DAMAGES
A. Direct Financial Losses
| Category | Amount |
|---|---|
| [Description of loss 1] | $[Amount] |
| [Description of loss 2] | $[Amount] |
| [Description of loss 3] | $[Amount] |
| TOTAL DIRECT LOSSES | $[Total] |
B. Consequential Damages
| Category | Amount |
|---|---|
| [Lost business opportunity] | $[Amount] |
| [Additional professional fees to remedy] | $[Amount] |
| [Other consequential damages] | $[Amount] |
| TOTAL CONSEQUENTIAL DAMAGES | $[Total] |
C. Incidental Costs
| Category | Amount |
|---|---|
| Attorney's fees for remedial work | $[Amount] |
| Expert fees incurred | $[Amount] |
| Other costs | $[Amount] |
| TOTAL INCIDENTAL COSTS | $[Total] |
D. Summary of Damages
| Category | Amount |
|---|---|
| Direct Financial Losses | $[Amount] |
| Consequential Damages | $[Amount] |
| Incidental Costs | $[Amount] |
| TOTAL DAMAGES | $[Grand Total] |
VII. SETTLEMENT DEMAND
Based upon the clear breach of the standard of care and the substantial damages incurred, we hereby demand:
$[DEMAND AMOUNT]
This demand will remain open for thirty (30) days from the date of this letter, expiring at 5:00 p.m. Central Time on [Expiration Date].
VIII. INSURANCE INFORMATION REQUEST
Please provide within ten (10) days:
- All professional liability insurance policies applicable to this claim
- Policy limits for each applicable policy
- Any deductible or self-insured retention amounts
- Excess/umbrella coverage information
- Claims-made policy retroactive dates
IX. DOCUMENTATION ENCLOSED
- Engagement letter and correspondence
- Documents evidencing the professional's work
- Documents evidencing damages
- Expert curriculum vitae
- [Other relevant documentation]
X. CONCLUSION
This case presents clear professional malpractice that caused significant financial harm to our client. We are prepared to litigate this matter through trial in the Circuit Court of [County] County, Wisconsin if necessary. However, we believe early resolution serves all parties' interests.
Please respond by the deadline stated above.
Respectfully submitted,
[FIRM NAME]
By: _________________________________
[Attorney Name]
State Bar of Wisconsin No. [Number]
Attorney for [Client Name]
ENCLOSURES: As noted above
cc: [Client Name]
File
WISCONSIN PROFESSIONAL MALPRACTICE PRACTICE NOTES
-
Modified Comparative Negligence: Under Wis. Stat. § 895.045(1), compare the plaintiff separately with each causally negligent person; recovery against that person is barred only if the plaintiff's negligence is greater than that person's negligence.
-
Claim-Specific Limitation: Section 893.53 generally gives three years after accrual for legal and other professional negligence claims sounding in tort. Check CPA claims under § 893.66 and separately analyze contract and other special claim routes.
-
Discovery Rule: Determine when the injury and its cause were or reasonably should have been discovered where the discovery rule applies; special statutes may set different clocks.
-
Case Within a Case: In legal malpractice, plaintiff must prove the underlying case would have been successful.
-
Expert Required: Expert testimony is typically required to establish standard of care unless the breach is obvious to a layperson.
-
No Cap on Compensatory Damages: Professional malpractice has no statutory cap on compensatory damages.
-
Accountant Third-Party Liability: Wisconsin is a leading state on accountant liability to third parties. Citizens State Bank v. Timm, Schmidt & Co., 113 Wis. 2d 376 (1983).
-
No Certificate of Merit: Unlike some states, Wisconsin does not require a certificate of merit before filing a professional malpractice action.
-
Venue: Proper venue is the county where the professional services were rendered or where the defendant resides.
-
Improvement-to-Real-Property Repose: Wis. Stat. § 893.89 generally defines the exposure period as the seven years immediately following substantial completion. Apply its coverage and exceptions to each design professional and claim; it is not a categorical ten-year architect/engineer period.
This template is specific to Wisconsin law. Professional malpractice claims in Wisconsin have specific requirements. Always verify current law and consult with qualified Wisconsin counsel.
About this template
- Last updated
- November 2, 2026
- Jurisdiction
- Wisconsin
- Category
- Demand Letters
A demand letter is a formal written request to fix a problem or pay what is owed, sent before anyone files a lawsuit. It gives the other side a real chance to settle, creates a record of your attempt to resolve things, and in many cases (unpaid debts, insurance claims, broken contracts) starts a legally required response window. A well-written demand letter lays out what happened, what you want, and a deadline to act, which is often enough to get results without ever going to court.
Not legal advice
This template is provided for informational purposes. We recommend having an attorney review any legal document before signing, especially for high-value or complex matters.
Checked against the law it cites
The statutes this template relies on are listed under Legal authority.
Wis. Stat. § 895.045(1) (checked November 2, 2026): "The negligence of the plaintiff shall be measured separately against the negligence of each person found to be causally negligent."
Wis. Admin. Code § Accy 1.201(1)(b) (checked November 1, 2026): "A certified public accountant shall exercise due professional care in the performance of an engagement."
Wis. Admin. Code § Accy 1.202 (checked November 1, 2026): "unless the certified public accountant has complied with the applicable generally accepted auditing standards"
Wis JI-Civil 1023.5 (legal malpractice) (checked October 29, 2026): "This standard is within the special knowledge of experts in the field of law and can only be established by expert testimony."
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