The Firm

Aaron A Nelson, Nelson Criminal Defense Group, WisconsinAfter more than 20 years of experience as a criminal defense attorney, Aaron A. Nelson has finally created his own firm, Nelson Defense Group, with his own unique vision for Defending People Against the Power of Government.

At the heart of Aaron’s many successful jury trials has been the long-time support and dedication of his patient and kind Legal Assistant Connie Berning as well as his brilliant and creative paralegal Mariah Vanasse.

In addition to this loyal support at the office, Aaron is proud to have Attorney Adam P. Nero at his side both in and out of the courtroom where Adam serves Nelson Defense Group clients with the core values of Nelson Defense Group.

Aaron A Nelson, Nelson Criminal Defense Group, WisconsinFounding Attorney – Nelson Defense Group

Aaron A. Nelson

Over his many years dedicated to Defending People Against the Power of the Government, Aaron has received numerous recognitions, including being named one of 50 Super Lawyers in Criminal Defense in Wisconsin (2011-2017), being AV rated by Martindale Hubbard, winning the Wisconsin Association of Criminal Defense Lawyers (WACDL) “Martin Hanson Advocates Prize” a record five (5) times (2010, 2014, 2016, 2016, and 2017), and in 2014 he was honored with David Niblack Award from WACDL. The David C. Niblack Award was created to honor and preserve the memory of David Niblack, “an outstanding attorney who devoted his life and considerable talents to the defense of those who needed it but could not pay for it.” Recipients of the award are attorneys being recognized for contributions to the effective defense of the indigent, either through cumulative career contributions or through outstanding individual accomplishments.

Aaron also routinely presents to other attorney’s at numerous Continuing Legal Education courses throughout Wisconsin (Wisconsin State Public Defender Conference, Wisconsin State Public Defender Trial Skills training), WACDL, Barry Cohen’s annual OWI seminar as well as nationally at the National College of Criminal Defense.


Aaron A Nelson, Nelson Criminal Defense Group, WisconsinAttorney At Law

Adam P. Nero

Adam began his career at a top OWI/DUI and criminal defense law firm in Madison, after graduating magna cum laude from William Mitchell College of Law in Saint Paul. Adam lives for the courtroom, has a solid track record of success, and already has the jury trial experience of more senior attorneys.

An authority on Wisconsin OWI/DUI laws, he has published related articles in the Wisconsin Law Journal in 2016 and 2017. Other attorneys frequently consult him for assistance on their OWI/DUI cases, and he has delivered training on OWI litigation to public defenders across the state. He has beaten criminal and OWI/DUI charges in the trial courts, won significant sentence reductions and new trials on post-conviction motions, and earned reversals of criminal convictions in the Wisconsin Court of Appeals.

In both 2014 and 2015, he completed the intensive curriculum in OWI/DUI defense at the National College for DUI Defense, held at Harvard Law School.


Aaron A Nelson, Nelson Criminal Defense Group, WisconsinLegal Assistant

Connie Berning

With over 25 years of experience as a Legal Assistant, Connie Berning has been an integral part of Attorney Nelson’s criminal defense team. Whether overseeing day-to-day operations, case management, or trial prep, Connie knows how manage a law firm and can assist Attorney Nelson through all phases of a case, so that he can focus his attention on the important matters in the courtroom.

Connie went to college for Court Reporting, but changed her career path when she realized she preferred helping people. Although Connie has focused the majority of her career on criminal defense, she also has extensive knowledge in family law and personal injury. Connie feels she’s always been fortunate to work for attorneys who not only appreciate good work, but also value family.

In addition to serving clients with compassion and keen insight, Connie is a strong believer in mentoring and community service. She volunteers for several veteran and youth organizations. Growing up on a dairy farm in Central Wisconsin, Connie knows how to work hard, which is seen in her loyalty to Attorney Nelson and dedication to clients. In her free time, Connie loves to cook, bake, sew, and work in her vegetable garden.


Aaron A Nelson, Nelson Criminal Defense Group, WisconsinParalegal

Mariah Vanasse

Mariah serves as paralegal to Attorney Nelson. In her role as paralegal she performs extensive review of discovery and evidence, organizing documents as well as creating summaries/chronologies of facts.

Mariah holds an Associate’s Degree in Applied Science-Paralegal from Chippewa Valley Technical College.

She has served as paralegal on a number of complex cases in which her responsibilities included: file organization, discovery review, trial preparation and providing trial support.

In her free time she enjoys painting, spending time with family and friends, and being outdoors.

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Aaron A Nelson, Nelson Criminal Defense Group, Wisconsin Aaron A Nelson, Nelson Criminal Defense Group, Wisconsin Aaron A Nelson, Nelson Criminal Defense Group, Wisconsin Aaron A Nelson, Nelson Criminal Defense Group, Wisconsin Aaron A Nelson, Nelson Criminal Defense Group, Wisconsin