Your Connection to Trusted Legal Resources

We provide a free 30 minute consultation for new clients.

P.O. Box 891
529 S. Jefferson Street
Green Bay WI, 54305

Phone: (920) 432-4303
Fax: (920) 432-4388

E -mail:


Martinson Law Offices is dedicated to the highest level of service and professionalism in handling legal matters. We use specialization and depth of experience to benefit our clients.


The attorneys at Martinson Law Offices have over 50 years of combined experience in various areas of law.


Clients have direct contact with an attorney from the start to the finish of a legal matter.


The attorneys at Martinson Law Offices have built their firm on honesty and trust. Rest assured that your private information stays with us.

Jeffrey J. Martinson graduated with honors from De Pere High School. He earned a Bachelor of Business Administration degree from UW-Madison Business School in 1986 and graduated Cum Laude from the UW-Madison Law School in 1989. Jeff is the owner of Martinson Law Offices and has been in practice since 1989.

Martinson Law Offices is a civil law practice. Martinson Law Offices has served the area since the mid-1960s. Jeff’s practice includes numerous estate planning matters, probate matters and other legal matters. Jeff has served as a court-appointed Guardian ad Litem in many areas of law, including probate, paternity, family, juvenile and guardianship matters.

Jeff is a member of the Wisconsin Bar Association and the Brown County Bar Association. He has also been admitted to practice law in the United States District Court, Eastern and Western Districts of Wisconsin. He is a past president and member of the Calvary Lutheran Church council and has served as president and member of the Bay Area Lutheran Homes, Inc. Board of Directors. He serves on the Board of Directors for The Center for Childhood Safety, Inc. Jeff is a member of the Estate Planning Council of Northeast Wisconsin and serves on its Board of Directors. He has also served as an adjunct instructor for the Paralegal Program at NWTC in Green Bay. Jeff volunteers at the Aging and Disability Resource Center in Green Bay and participated as a judge in the county’s Teen Court program.