Mayer, John F.

Patrick Mathis is a founding shareholder at Mathis, Marifian & Richter (MM&R), who focuses his practice in business law, taxation, estate planning and banking.

With nearly 30 years of experience, Pat has an extensive background in providing legal counsel related to business mergers, sales and acquisitions, shareholder litigation, trusts and wills, probate, federal and state tax audits and appeals, tax court litigation and criminal tax defense. He has written several definitive articles on various aspects of each area.

Over the past 25 years at MM&R, Pat has provided a full range of superior legal services to clients in the Southern Illinois and St. Louis Metropolitan areas. His mission is to deliver superior personalized service to every client, no matter how large or how small. He has the knowledge to identify the issues and find creative solutions, whether it's analyzing complex tax or estate planning issues or advising business clients.

Community Involvement

Pat currently serves on the Board of Directors for the March of Dimes, Southern Illinois District; the Board of Trustees for Illinois College of Jacksonville, Illinois; as a board member for the Southwestern Illinois College Foundation and for the Camp Ondessonk of the Catholic Diocese of Belleville; and as a Southern Illinois University Foundation Planned Giving Council member. He previously served on the Board of Directors for St. Clair County Greenspace Foundation and Signal Hill Neighborhood Association, and he was also a board member for the Signal Hill Education Foundation and Signal Hill School District. Pat also previously served on Special Children, Inc.’s Finance Committee for Mamie O. Stookey School and as chairman of Big Brothers Big Sisters of St. Clair County’s Annual Fund Drive. He is very involved in Blessed Sacrament Parish, having been a member of the Finance and Parish Councils and serving as president and as a Parish School of Religion teacher. Pat is also currently a member of the Missouri Athletic Club, St. Clair Country Club, Alpha Sigma Nu and Eta Sigma Phi.