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Meet your denied insurance claim experts.

Our Partners

Wisconsin Attorney John Mayer

John Mayer

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After 30 years of practice, John felt that there was a need for impassioned advocates to represent “the little guy”. Thus, MGW Law was born with the purpose of representing those facing wrongfully denied insurance claims and insurance bad faith in the state of Wisconsin. ​​John’s career is well-rounded having spent time on both sides of the aisle, successfully prosecuting and defending hundreds of matters for both individuals and institutional clients. From complex medical malpractice to nearly every aspect of insurance litigation, John has successfully recovered tens of millions of dollars for his clients throughout the years. Outside the courtroom, John is passionate about education and speaking to lawyers, health care providers, insurance personnel, classrooms, and other institutions on topics ranging from evidentiary matters, insurance law, medical malpractice, negligence, wrongful claims denials, and much more.

Education & Experience

  • Creighton Law School, JD, 1989
  • University of Wisconsin – Milwaukee, BA, 1985
Wisconsin Attorney Ryan Graff

Ryan Graff

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As one of the founders of MGW Law, Ryan dedicates his practice to representing policyholders and accident victims who have been treated unfairly by insurance companies. Ryan spent the first decade of his law career representing insurance companies in a wide variety of complex matters. This experience provides Ryan a unique perspective on how insurance companies work, as well as how to get the most for his clients. Ryan has argued his clients’ cases in front of the Wisconsin Supreme Court, Wisconsin Appeals Court and 7th Circuit Court of Appeals in Chicago.

Education & Experience

  • Licensed to practice in the state and federal courts in Wisconsin, Iowa and the Northern District of Illinois 
  • National Board Adviser for American Adjuster Association
  • Member of Wisconsin Association for Justice
  • University of Wisconsin – Madison, BA 2003
  • Marquette University Law School, JD 2006
Wisconsin Attorney Justin Wallace

Justin Wallace

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Justin Wallace is a trial lawyer who specializes in helping people who aren’t getting what they deserve from an insurance company. He grew up in western New York and spent a year in France as an exchange student as a senior in high school. Justin received degrees in math and English from Grinnell College in Iowa and graduated from the University of Wisconsin Law School with honors in 2008. Justin spent over a decade representing many of Wisconsin’s insurers before forming MGW with John and Ryan to give people and businesses strong representation against powers that sometimes seem insurmountable. Justin also sits on the board of directors at Pine Hills Country Club and occasionally sneaks out on nice summer days with good friends for a few holes. He and his girlfriend Susan enjoy skiing, scuba diving and taking fun random trips, oftentimes with his puppies Cal (@calthegiantberner) and Sam. Justin has tried a variety of cases to jury and truly enjoys finding creative ways to fix all sorts of problems people and friends have.

Education & Experience

  • Talley v. Mustafa Mustafa, 2018, Wisconsin Supreme Court
  • University of Wisconsin Law School with Honors
  • Math and English from Grinnell College with Honors

 

Justin Wallace

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Our Attorneys

Josh Greatsinger

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Prior to joining MGW, Josh represented insurance companies in a wide variety of legal matters allowing a deep understanding for the way insurance companies process and value claims. This critical experience is Josh’s motivation to fight for MGW clients that have had their claims unfairly delayed or denied by an insurance company. Josh has appeared in hundreds of cases and assisted policyholders and others from the early stages of an insurance claim to resolution. Josh has used this experience to obtain substantial settlements and judgments for his clients.

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Kati Mayer

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Kati Mayer is an attorney at MGW Law and a Manitowoc native. Kati started her career at a firm that focused heavily on the representation of insurance companies and worked to expand into plaintiff’s work. When invited to join MGW Law, she jumped on the opportunity to work with a firm that was founded by individuals who are passionate about representing people who have suffered due to the unlawful actions of others.

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Ty Sessums

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Ty Sessums is an attorney at MGW, providing tenacious advocacy on behalf of plaintiffs. While in school, Ty spent several semesters in the Law and Entrepreneurship Clinic, helping resolve the legal issues of clients with early-stage small businesses and was involved in the Intellectual Property Student Organization. Before pursuing law, Ty attended Texas A&M University and earned a Bachelor of Science in Mechanical Engineering and spent thirteen years working in the U.S. and abroad in power plant design, maintenance and construction. 

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Travis Yang

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A Sheboygan native, Attorney Travis L. Yang is a graduate of Marquette University Law School and has been practicing law in Wisconsin for several years. While working at a Madison-based nonprofit for three years, Travis saw how law could positively affect individuals and organizations, leading to his career in law and role at MGW fighting for clients’ rights. Travis is of Hmong descent and a fluent Hmong speaker and writer, allowing him to represent and service the growing Hmong population in Wisconsin.

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Underpaid Insurance Claim Lawyers

A combined 60 years of experience
ready to review your case.

After spending a combined 60 years working as lawyers for large insurance companies, partners John Mayer, Ryan Graff and Justin Wallace opened MGW. Fed up with the predatory practices insurance companies play with people, John, Ryan and Justin saw how things have changed over the years and decided to take their deep understanding of the insurance claim process and help those in need.

When someone who has an insurance claim that’s being denied or delayed by their insurance provider, it’s often incredibly frustrating and you may feel like you have nowhere to turn. MGW is the only law firm in Wisconsin that specializes in representing those who have been treated unfairly by their insurance companies due to bad faith insurance practices. Our approach to helping clients is rooted in collaboration and a deep understanding of your unique case. There is no law team serving the state of Wisconsin that’s better suited to get you a fair and just settlement for your denied or delayed claim. We make insurance companies pay.

Insurance Claim Experts

We specialize in all practice areas of insurance claims, from residential homes to commercial claims.

Bad Faith Insurance Claims
Life Insurance Claims
Commercial Property Claims
Health Insurance Claims
Residential Property Claims
Travel Insurance Claims

We are ready tofight your case