Meet Our Lawyers

Thomas Mottaz

Thomas Mottaz Work Comp Lawyer
Licensed For:

Mr. Mottaz has been representing injured workers since 1981. His experience includes numerous cases within the Workers’ Compensation system to the Minnesota Supreme Court. Mr. Mottaz has earned a reputation for being a strong advocate for the rights of injured workers. He is a recognized authority in workers’ compensation law and has written and lectured extensively on the topic. He is a co-editor of the Workers’ Compensation Deskbook, a recognized treatise on Minnesota workers’ compensation law. He is listed in the Best Lawyers in America (Naifen & Smith), Who’s Who in American Law (Marqueis) and Law and Leading Attorneys (American Research Corporation) and has been designated “Super Lawyer” by the Minnesota Journal of Law and Politics. He has an AV Martindale-Hubbell rating.

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Jerry Sisk

Jerry Sisk Minnesota Workers Compensation Lawyer
Licensed For:

Earlier in his career, Jerry represented insurance companies so he knows first-hand how these companies defend against lawsuits by manipulating the legal system in their favor. He knows what it takes to prove entitlement to benefits. Because insurance companies have infinite dollars to fight your case they can hire expensive defense lawyers and investigators to assist in the denial of your benefits. Moreover, they can send you to their doctors to obtain medical reports which potentially can be used against you during their case. Jerry understands this and works diligently to make sure that all the necessary steps are taken to win at trial.

Jerry is recognized by Super Lawyers Magazine as as Rising Star attorney. He has a 10/10 rating on He is AV Rated through Martindale Hubbell. Jerry is a member of the Minnesota State Bar Association, Minnesota Association of Justice, and Anoka County Bar Association. He is also the former President for the Anoka County Bar Association. He is currently Co-Chair of the Workers’ Compensation Section of the Minnesota Association of Justice. He is a contributor to the Minnesota Association of Justice Trial magazine, where he is published. He is a frequent presenter throughout the State of Minnesota on various workers’ compensation topics.

Jerry is an accomplished Minnesota workers compensation attorney that has dedicated his practice to helping injured workers. Jerry, his wife, and three kids reside in Blaine, Minnesota. When he is not chasing his kids around the house and coaching their activities, he enjoys snowboarding, woodworking, bicycling, and exercising.

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David Kempston

David Kemptson MN Work Comp Attorney
Licensed For:

Mr. Kempston has been practicing law since 1992. He worked as an insurance defense attorney for four years before coming to work with Mr. Mottaz. This background provides him with a unique perspective when pursuing the rights of injured workers. Described by his peers as “aggressive yet reasonable,” Mr. Kempston is a strong advocate for the injured worker.  He co-authored a chapter on medical benefits in the Minnesota Workers Compensation Deskbook.  He has been designated a “Super Lawyer” since 2000, by Thompson Reuters.  He is also listed in The Best Lawyers in America as seen in Minnesota Monthly.  Mr. Kempston possesses an AV rating from Martindale-Hubbell.  He has written a book on the practice of law, entitled That’s Why They Call it Practicing Law (2017)—available at Amazon.

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Our Staff

Our Staff

Our support staff is well trained and highly experienced. Our legal assistants, legal secretaries and administrative staff have years of knowledge and experience in helping injured workers. Because we limit our practice to representing injured workers, we provide professional, competent and efficient services. Our firm seeks to provide excellent customer service. We emphasize maintaining open and ongoing communication with our clients. We strive to satisfy our client’s needs and objectives. While our clients focus on recovering- we focus on securing the benefits they deserve.

Awards and Accomplishments

Thomas Mottaz & David Kempston Minnesota Monthly "2011-2018 Best Lawyers"
Thomas Mottaz, David Kempston and Jerry Sisk Minnesota Super Lawyers and Rising Stars
Thomas Mottaz, Jerry Sisk, and David Kempston Martindale-Hubbell AV Rated
Co-editor, Thomas D. Mottaz. and contributor, Jerry Sisk & David Kempston Minnesota Workers’ Compensation Deskbook