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About Us

Our Team

Gregory J. Veltus, CPA

Greg has been with McMahon-Veltus, SC since 1976 and is the current managing partner of the firm. He graduated from the University of Wisconsin - Whitewater in 1976 and from St. Catherine's High School in 1972. He is past president of the local chapter of the National Association of Accountants and the Union Grove Greater Chamber of Commerce. He was a trustee for 12 years at St. Robert Bellarmine Catholic Church in Union Grove. Greg has four wonderful children. Emily is working for Doctors without Borders and studying Medicine at UW-Madison. Kristin is a Financial Recruiter for Baker Tilly Search and Staffing. Kaleigh is an Associate Product Manager at Uline.  Kevin is a Sales Representative for Vomela Transportation. Greg enjoys hunting, fishing, and all outdoor activities.

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James W. Carlson, CPA

Jim joined McMahon-Veltus, SC in August of 1991 after completing his bachelors degree at the University of Wisconsin - Whitewater. Jim is a partner with the firm and manages the Union Grove and Burlington offices. He was treasurer for the Greater Union Grove Chamber of Commerce for six years. His interest outside of work include woodworking, shooting and hunting.

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Brian J. McMahon, CPA

Brian has been with McMahon-Veltus, SC and Meier, Clancy, George and Company since 1962 and is a current CPA with the firm. He graduated from the University of Wisconsin - Whitewater in 1960 and from Westfield High School in 1955. He is past president of Point West Business Association, Union Grove Lions Club and is currently president of Union Grove Community Foundation. He was treasurer of Racine Founders Rotary Club for ten years and is a current member. He was chairman of the finance committee of St. Roberts Church for 20 years. He is married to Cheryl for 42 years they have four children and five grandchildren. His hobbies include golf and racing standard bred horses.

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Jarod A. Pobst

Tax Supervisor

Jarod joined McMahon-Veltus, SC in August 2017.   After graduating Magna Cum Laude from the University of Wisconsin – Whitewater in 2014, Jarod joined Schenck, SC in Milwaukee.  There he worked heavily in corporate taxation and specialized in trust, estate, and individual taxation.  In his free time, Jarod enjoys movies, skiing, and relaxing at his home in Burlington with his spouse and three stepchildren, Kyle, Seth, and Ethan.

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Lynn Raguse

Lynn has been with McMahon-Veltus, SC since 1989. She previously worked for Smith, Demuth & Black in Lake Geneva from 1975 until 1988, and for Ed Stone from 1988 until his firm was bought out by McMahon-Veltus SC in 1989. She graduated from the University of Wisconsin - Whitewater in 1975, graduating Cum Laude.

Lynn has been actively involved in her community serving as treasurer for Providence Catholic School, Secretary of Finance Committee for St. Francis Xavier Church, and Racine County 4-H Treasurer, and Racine County 4-H representative for State Congress.

Lynn is also a proud mother of two sons. Alan Raguse is the owner of Allstate Insurance Agency in Woodstock, IL.  Joseph Raguse is a CPA and Chief Financial Controller for Data Dimensions in Janesville, WI.

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Beth Dessart
Accountant & QuickBooks Certified ProAdvisor

Beth joined McMahon-Veltus in August 2017. She graduated from the University of Wisconsin-Parkside in 2003 and was certified in QuickBooks in 2006.  Beth is our on-staff expert when it comes to questions regarding Quickbooks. She is a Racine local and enjoys the outdoors, camping, and spending time with her family in her free time.   E-mail Address:



Karen Nelson
Receptionist & Bookkeeper in Racine office



Jean Lois
Receptionist & Bookkeeper in Union Grove Office



Nancy Grasser
Bookkeeper in Union Grove Office



Judy Giaimo
Receptionist at the Burlington Office




Donna Lane
Bookkeeper & Tax Preparer
Donna was employed by John B. Moe in 1987 to do bookkeeping, income tax preparation, and accounts receivable. Her interests include camping, snow skiing, and motor-cycle riding.