11 Tressler Partners Selected in the 2023 Edition of The Best Lawyers in America®

11 Tressler Partners Selected in the 2023 Edition of The Best Lawyers in America®

  • Aug 25, 2022, 01:35 PM

We are excited to announce that Tressler partners Mark Banovetz, Daniel Cunningham, Danita Davis, Daniel Formeller, Timothy Jabbour, Donald Machalinski, Mary McPherson, William McVisk, Todd Schenk, Patrick Stufflebeam and Rosa Tumialán were recently selected by their peers for inclusion in the 29th Edition of The Best Lawyers in America®.  Congratulations to all! 

Learn more about Tressler's award-winning attorneys:

Chicago, Illinois

Mark Banovetz

Mark T. Banovetz: Insurance Law

Mark is a partner at Tressler and is one of the firm’s three Executive Committee members. His practice includes general litigation, insurance coverage analysis, and coverage litigation. Mark’s practice includes representation of pilots, airports, fixed base operators, maintenance facilities, and aviation suppliers and manufacturers. He also has substantial experience representing energy companies in the defense of claims involving aircraft accidents arising from aircraft impacts with ground based structures. Mark lectures and provides counsel to industries in regard to FAA regulations on the marking and lighting of obstructions under the FAA’s regulation of the national airspace system.

Daniel Cunningham Tressler LLP

Daniel J. Cunningham: Insurance Law

Dan's practice involves insurance coverage and bad faith litigation stemming from underlying consumer protection claims, privacy claims, intellectual property claims, personal and advertising injury claims, defective product claims and environmental claims. Dan has represented insurers in all aspects of litigation throughout the country and has developed skill in successfully asserting coverage defenses arising out of underlying class action lawsuits. Dan frequently represents insurer interests with regard to coverage disputes arising out of the Telephone Consumer Protection Act, the Fair Credit Reporting Act and the Fair and Accurate Credit Transaction Act. He is also involved in counseling insurers with regard to claims arising under various federal and state statutes governing the protection of personal data.

Danita Davis Tressler LLP

Danita L. Davis: Insurance Law

Danita is Co-Chair of Tressler's Insurance Practice Group. She also practices with the Litigation Defense Practice Group.  Danita represents insurers in matters regarding first party property residential and commercial disputes, commercial general liability coverage, professional liability coverage, liquor liability coverage and employment practices liability coverage, among others. She advises insurers regarding a broad range of matters involving state and federal law throughout the country. She regularly appears in court on both routine and contested matters, participates in oral argument and conducts all facets of discovery and trial preparation. She has many favorable outcomes through dispositive motion practice in cases involving coverage and liability issues. Danita also has experience in alternative dispute resolution, having represented clients in settlement conferences and at mediations and arbitrations. Additionally, she has experience defending policyholders in suits alleging a wide range of claims, including but not limited to, premises liability, general negligence, vicarious liability, wrongful acts, contractual disputes, business torts, wrongful employment practices and wrongful acts and intentional conduct. 

Dan Formeller

Daniel R. Formeller: Insurance Law, Litigation – Insurance

Dan is Chairman of the firm. As a trial lawyer based in the firm’s Chicago office, Dan focuses his practice on business litigation and the resolution of business disputes through mediation and arbitration. Dan handles a wide variety of complex business litigation and counseling, including intellectual property, state and federal securities actions, anti-trust, ERISA, class actions and directors and officers liability matters. He has been lead trial counsel in bench and jury trials in state and federal courts throughout the United States. 

Don Machalinski Tressler

Donald G. Machalinski: Aviation Law

Don concentrates his practice in aviation, product, professional and premises liability litigation and his practice also includes insurance coverage litigation. Don has an active casualty trial practice as well as an appellate practice for both liability and coverage matters.

William McVisk

William K. McVisk: Insurance Law, Litigation – Insurance

Bill focuses his practice on complex insurance coverage litigation and hospital law and medical liability. He has handled all areas of coverage and bad faith litigation, especially third-party bad faith and coverage litigation involving commercial general liability, professional liability coverages as well as personal lines coverages such as auto and homeowners coverages.

Todd Schenk

Todd S. Schenk: Insurance Law, Litigation – Insurance

Todd is a member of Tressler's three-person Executive Committee. He is highly experienced in providing insurance coverage counseling and litigation representation to insurance companies. Todd is particularly skilled in handling third party claims involving advertising injury and product liability, and first party claims under residential and commercial property policies. Many of his cases require the defense of common law and statutory bad faith claims, which Todd litigates in venues around the country. He has also handled appeals in both state and federal courts around the country.

Tumialan, Rosa Tressler LLP

Rosa M. Tumialán: Appellate Practice, Insurance Law, Litigation – Insurance

Rosa is a partner in the firm’s Chicago office. Rosa is a member of the firm’s Insurance Practice Group and focuses her practice on insurance coverage and bad faith litigation. She is an accomplished defense attorney with nearly twenty years of insurance coverage experience. Rosa’s insurer-related services include coverage opinion analysis and representing insurers in complex coverage disputes relating to personal and commercial lines, third party claims, surplus lines as well as claims handling practices and extracontractual liability. Rosa also assists with drafting coverage documents for insurance pools and counsels clients in the administration of same. Her practice also includes serving as national coordinating coverage counsel for insurance clients who rely on her to develop and implement strategies nationwide in response to pattern litigation. Rosa is an accomplished class action defense lawyer and appellate practitioner, having appeared and argued in both state and federal courts nationwide.

Morristown, New Jersey

Timothy Jabbour Tressler LLP

Timothy Jabbour: 
Insurance Law

Tim is a member of Tressler's three-person Executive Committee and Managing Partner of Tressler's New Jersey office. His practice focuses on the representation of foreign and domestic insurers in both state and federal courts. Tim has more than 18 years of experience litigating defense matters and complex insurance coverage disputes in New Jersey and across the country. His extensive litigation experience includes handling complex coverage and defense matters across various lines including property/casualty, complex pollution/toxic tort, professional liability, products liability, employment practices liability, cyber/privacy liability, aviation and marine.

Orange County, California

Mary McPherson Tressler

Mary E. McPherson: Insurance Law

Mary handles complex coverage matters exclusively on behalf of the insurance industry. She is highly experienced in counseling and representing insurers in complex bad faith, asbestos, construction defect, additional insured, personal injury, environmental and primary/excess coverage issues on a nationwide basis.  Mary is often brought in by insurers to assess and troubleshoot complex coverage issues in high exposure tort cases and assist them in reaching global settlements.

St. Louis Metro Area - Edwardsville, IL

Patrick Stufflebeam

Patrick W. Stufflebeam: Litigation - Insurance, Mass Tort Litigation/Class Actions – Defendants

Patrick is a partner in the St. Louis Metro Area office of Tressler LLP. He concentrates his practice on the defense of civil litigation including toxic tort (asbestos, talc, and benzene), premises liability, product liability, commercial litigation, and insurance coverage issues. He also counsels clients and attorneys regarding cybersecurity and the use of technology in the law. Patrick has represented individuals, family-owned businesses and farms, and some of our country’s largest corporations. 

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Since it was first published in 1983, Best Lawyers® has become universally regarded as the definitive guide to legal excellence. Best Lawyers lists are compiled based on an exhaustive peer-review evaluation. Lawyers are not required or allowed to pay a fee to be listed; therefore inclusion in Best Lawyers is considered a singular honor. Corporate Counsel magazine has called Best Lawyers "the most respected referral list of attorneys in practice."

Click here to view the press release from Best Lawyers® regarding the 29th Edition of The Best Lawyers in America®.


Tressler LLP is a national law firm headquartered in Chicago, with eight offices located in five states - California, Illinois, New Jersey, New York and Pennsylvania. Tressler attorneys are experienced counselors and advocates who appear in state and federal courts, and in governmental proceedings, throughout the United States. Many Tressler attorneys devote their practice to the representation of the insurance industry in coverage analysis and resolution, litigation, underwriting consultation, product development, claims management and reinsurance. Tressler attorneys also represent clients in commercial litigation, employment, corporate transactions and intellectual property law.

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