Our Team

Benton County Attorneys

For more than 100 years and spanning four generations, Mossman Law Firm has been a recognized legal fixture in Northeast Iowa. We are a general practice firm that can help you with many areas including estates, trusts, real estate, criminal defense law and much more.

Dedicated to the Vinton area, our attorneys were born and raised here and have all started families in the area. By staying connected in our close-knit community and drawing on our extensive experience, we can offer the best possible outcome for our clients.

Mark Mossman

Mark began practicing in 1975 with his father, Keith, after graduating from the University of Iowa and Drake Law School with honors and as a member of the Law Review. He has served as Benton County Attorney, was a member of the Iowa Board of Governors and is Chairman of Virginia Gay Hospital. He practices primarily in the areas of estate planning, probate and trust administration, real estate and taxation (see complete profile).

John Mossman

In 2002, John became the fourth-generation lawyer with the firm joining his father, Mark, following his graduation from the University of Iowa and Drake Law School. John practices primarily in criminal defense, civil litigation, real estate and probate. He serves on several community boards, is married and is a very proud father of three daughters (see complete profile).

Our Team

The Origins of Our Firm

The origins of the law firm of Mossman Law Firm, date back to the 1800s, beginning with the practice of Judge G. M. Gilchrist, Senator W. P. Whipple and Judge E. F. Brown.

Hugh Mossman
(1873-1956) joined the firm of Whipple & Brown in December of 1908 after graduating from the University of Missouri Law School. Hugh served as Benton County Attorney, was a leader in the Republican Party and was widely known as an orator of great skill. He was a cousin to Republican presidential candidate Alfred Mossman Landon. His father, Benjamin Franklin Mossman, had been the Benton County Clerk of Court. Deeply religious and community-minded, he was involved in the Methodist Church and Masonic Lodge for many years and was a director of St. Luke’s Hospital in Cedar Rapids.

Following service in World War II as a Navy pilot, Keith Mossman (1921-2011) graduated from the University of Illinois Law School in 1948. He joined his father, Hugh, in the Vinton practice in June of that year. Keith was elected Benton County Attorney in 1950 and served for 18 years. He was president of the Iowa County Attorneys’ Association and the National District Attorneys’ Association, as well as Chairman of the American Bar Association Judiciary Committee. An orator like his father, he spoke in nearly every state of the union promoting new criminal justice standards. Keith practiced for 62 years before retiring in 2010.

Our Attorneys are proud to carry on the strong foundation created by Hugh and Keith and are widely recognized for obtaining the optimal solution for their clients.

Our Attorneys Are Dedicated To Offering Personalized Legal Services

Mossman Law Firm, is a general practice firm. Unlike many other firms in the area, we offer a broad range of legal services to our clients. These areas include contested divorce, personal injury, probate administration, tax returns and more.

As a result of our love for Benton County and its residents, we are dedicated to creating meaningful, authentic relationships with all of our clients. Whether you need to sign a will, contract or deed, we strive to ensure that all of your questions are answered before you put your pen to the paper.

Contact Mossman Law Firm For More Information

To schedule an initial consultation with our experienced attorneys, call 319-472-2396 or complete an online contact form.


Mossman Law Firm
122 E. 4th St.
Vinton, IA

Phone: 319-472-2396
Fax: 319-472-2852

Mossman Law Firm, located in Vinton, Iowa, serves clients throughout Cedar Rapids, Iowa City, Independence, Marengo, Toledo, Shellsburg, Keystone, Van Horne, Atkins, Norway, Walford, Center Point, Urbana, Belle Plaine,

Blairstown, Hiawatha, Robins, Walker, Garrison, Brandon and Amana. Our experienced attorneys also work with clients in Benton County, Tama County, Linn County, Johnson County, Buchanan County, and Iowa County.