Mary L. Hahn, Shareholder

Practice Areas

Civil Litigation, General Business, Contract Disputes, Appeals, Family Law, Employment Law, Construction Law

Mary Hahn has honed her skills in the courtroom over the last 30 years, specializing in civil litigation and appellate law, in particular multi-party business litigation, construction law, business contract disputes and divorce proceedings.

She practices in State District Courts and in Federal Court. She has substantial appellate law experience. She serves as the firm’s primary practitioner at the Minnesota Court of Appeals.

Hahn’s colleagues credit her for detailed preparation, as well as her clear and effective presentation in Court. “I am confident in my ability to anticipate the twists that litigation may take, while advocating aggressively for my client,” she says.

Background and Education

Prior to moving to Northfield in 2000, Hahn practiced law at the Atlanta construction law firm of Shapiro, Fussel, Wedge, Smotherman, Martin & Price.

Hahn graduated in 1993 from the University of North Carolina School of Law in Chapel Hill, with Honors, is a published author, and was on the North Carolina Law Review. She received her undergraduate degree, with High Honors, from the University of Michigan in Ann Arbor in 1990.

Community Involvement

Hahn teaches legal seminars through Community Education on topics such as real estate, buying and selling a home, employment law and tips for small business owners.

Hahn is a proud member of the Northfield Rotary Club. She presently serves as the Youth Protection Officer for North Star Rotary Youth Exchange, working with in-bound and out-bound Rotary Youth Exchange students. Hahn served as President of the Board of the Northfield Arts Guild, and President of the Board of League of Women Voters, Northfield-Cannon Falls.  She served on the board of the Northfield Fine Arts Boosters (NFAB), and Women in Northfield Giving Support (WINGS).  She served as president of the Rice County Bar Association and is a member of the Fifth District Bar Association.

Hahn leads group fitness classes, and enjoys choreographing local community musical theater productions.


Hahn is married to St. Olaf College professor Steve Hahn.  Her daughter Erin is 25 and graduated with Highest Honors from the University of Michigan (class of 2020).  Erin plans to attend law school, like her mother and grandmother before her.  Her son Luke is 23.  Luke was a Rotary exchange student to Japan in 2018-2019 and is a Senior at University of Colorado at Boulder.

Contact Us

Hvistendahl, Moersch, Dorsey & Hahn, P.A.

    311 South Water Street
    Northfield, MN 55057


    Phone: 507-645-9358
    Fax: 507-645-9350