Cassidy & Mueller P.C.

Law Firm in Peoria, IL

Client Rating N/A help_info
Submit a client review

Peer Rating 4.6 of 5

About This Firm

Cassidy & Mueller is among the limited number of civil litigation firms which are included in the Bar Register of Preeminent Lawyers. The firm appreciates its recognition and looks to the future as a time when creative defense solutions, aggressively pursued, will result in the prompt and favorable disposition by trial or settlement of all but the most complex cases. The result oriented philosophy of the firm, and its success in pursuing that objective, have led to its frequent selection as lead regional counsel in involved multiple party and multi issue cases.

Future Commitment

Recognizing that "time is money" we pledge to our current clients, and those whom we will represent in the future, our continuing commitment to John Cassidy's admonition to "strike decisive blows" early.

The defense heritage of Cassidy & Mueller began in Europe in 1918 when a young law school graduate named John E. Cassidy was assigned to the Hartford Brigade during World War I. There he met and befriended members of the insurance and insurance claims industry. After the war Cassidy opened the first down state claims office for Aetna Casualty & Surety Company in 1921. Two years later he began a private practice with Aetna Casualty & Surety Co. and Hartford Insurance Group as principal clients.

Areas of Law

  • Coverage
  • Personal Injury
  • Commercial Lines
  • Personal lines and Fidelity Bond Cases
  • Product Liability
  • Strict Liability
  • Negligence
  • Warranty
  • Mass Tort
  • Environmental Cases
  • Physician, Hospital and Nursing Home Malpractice
  • Pharmaceuticals
  • Personal Injury and Death
  • Property Damage
  • Defective Construction
  • Defective Materials
  • Performance Bond Cases
  • Contract
  • Tort Immunity
  • Civil Rights
  • Sex, Age and Race Discrimination Cases
  • Workers Compensation
  • Arbitration
  • Commission
  • Circuit Court
  • Appellate Court
  • Third Party Contribution Cases
  • Legal Malpractice
  • Fee Dispute and Estate and Trust Cases
  • Crossing
  • FELA and Labor Cases
  • Fiduciary Breach
  • Trust and Estate
  • Insurance Agents and Broker Realtors .

Peer Rating


Average Peer Rating

Based on this firm's rated lawyers
4.6 out of 5.0
  • Lawyers rated at this firm meet very high criteria of general ethical standards
5.0 out of 5.0
5.0 out of 5.0
4.4 out of 5.0
4.4 out of 5.0
4.4 out of 5.0

People at This Firm

Lawyer Name:
Area of Law:
John E. Cassidy, Sr.
John E. Cassidy, Sr.
John E. Cassidy, Jr.
John E. Cassidy, Jr.

Firm Details

Year Established


Firm Size



Addison Insurance Company, Archer Daniels Midland Co., Atchison Topeka & Santa Fe Railroad Company, Carolina Insurance Cos., Caterpillar, Inc., Chicago Motor Club, Chrysler Corporation, Commercial Union Assurance Co., Dow Corning, Inc., E.I. DuPont DeNemours & Co., Farmland Insurance Co., Gallagher Bassett Services, Garlock Inc., Gates, McDonald Co., Grain Dealers Mutual Ins. Co., Grinnell Mutual Group, Illinois-American Water Co., Indiana Insurance Co., JLG Industries, Inc., Liberty Mutual Insurance Co., Massachusetts Mutual Ins. Co., McDonald's Corp., MedMarc Casualty Insurance Co., Merrell-Dow Pharmaceuticals, Inc., MetLife Auto & Home, Metropolitan Property & Casualty, Mt. Hawley/RLI Insurance Co., Nationwide Insurance Co., Occidental Petroleum Co., Parke-Davis & Co., Pekin Energy Company, Safeco Property & Casualty Ins. Co., Scottsdale Insurance Co., Selective Insurance Co., Squibb & Sons, Inc., St. Paul Fire & Marine Ins. Co., TCO Insurance Services, The Upjohn Company, Travelers Insurance Co., Twin City Fire & Casualty Insurance Co., United Fire Group, University of Illinois, Warner-Lambert Company/Pfizer and Zurich North America.

Contact Information

Mailing Address

Cassidy & Mueller P.C.
323 Commerce Bank Building 416 Main Street,
Peoria, Illinois 61602

Firm Address

Cassidy & Mueller P.C.
323 Commerce Bank Building 416 Main Street,
Peoria, IL 61602

Phone 1

309-340-4957 Call firm now

Phone 2





Send email to Cassidy & Mueller P.C.

Office Information
323 Commerce Bank Building 416 Main Street,
Peoria, IL 61602


Office Hours
By appointment
By appointment

About Client Rating
About Peer Rating

Welcome to Martindale-Hubbell® Client Review, a new ratings service that allows you to view and provide feedback on a lawyer or law firm on service and relationship qualities such as Communication Ability, Responsiveness, Quality of Service, and Value for Money.

Determining a Rating

The Client Review Rating is determined through aggregation of validated responses. This compilation of Client Reviews translates to a numerical rating and associate descriptive term on a scale of 1 -5. 1 being lowest as "Rated" and 5 being highest as "Preeminent".

  • 4.5-5.0 Preeminent
  • 3.0-4.4 Distinguished
  • 1-2.9 Rated

Martindale-Hubbell uses a third-party resource to validate that the respondent is a living person, but cannot confirm the lawyer/client relationship, which in many cases is confidential. Clients must affirm that they are a client of the lawyer or firm identified for review at the time of the completed Client Review.

The Reviewers

Those who complete Client Reviews are clients of law firms who hired a lawyer within the last year, whose matter is not pending, and want to share their experience of that lawyer or law firm with other potential clients. Reviewers can be of any type from in-house counsel, corporate executives, small business owners to private individuals, and even sometimes another lawyer in a different jurisdiction.


Client Reviews are anonymous and reviewers' identities are not published; however a summary of basic demographics will be part of the display of responses.

Why do we collect demographics as part of the review?

Those who are researching a lawyer or law firm like to see that there are other clients who might be "like them". This is valuable information contributing to the decision-making process of hiring a lawyer.

Martindale-Hubbell's role

Martindale-Hubbell facilitates the process of Client Review by gathering responses, validating them and aggregating results for display online. The content of the responses are entirely from reviewers, the clients of the firm or lawyer.

It is important to note that Martindale-Hubbell does not undertake to develop Client Reviews for all firms and lawyers. Therefore, the fact that a firm or lawyer has not been reviewed should not be construed unfavorably. Prior results do not guarantee a similar outcome and Martindale-Hubbell accepts no responsibility for the content or accuracy of any review over which Martindale-Hubbell exercises no editorial review or control.