Michael J. Patchin joined the firm right out of the University of Minnesota Law School in 1976, and has been with the firm since that time.

Terrence M. Aronson and Michael K. Kearney later joined the firm and the firm became known as Colosimo, Patchin, Aronson & Kearney, Ltd.

The latest incarnation of the firm includes its two latest additions: Mitchel J. Brunfelt, who formerly interned and clerked with the law firm during law school, joined the firm in the late 1990's having been general counsel and chief litigator for AFSCME Council 65, AFL-CIO.

Most of the lawyers in the firm have deep roots in northeastern Minnesota and are originally from the Mesaba Range area. Attorney Michael Patchin came to the firm from Hutchinson, Minnesota, but has been well received by the people of this area and is considered as a respected "adopted" son.

The law firm prides itself on the competence and loyalty of its support personnel. Several have been with the firm for in excess of 20 years. The lawyers and support personnel have a working alliance which allows the firm to achieve a high level of professional success and competence while at the same time providing legal services efficiently and economically.

Colosimo, Patchin, Kearney, & Brunfelt, Ltd. is admitted to all federal and state courts in Minnesota, and the Eighth Circuit Court of Appeals. Mr. Colosimo is also admitted to the Bar of the state of North Dakota, and does some work in eastern North Dakota.