Colleen A. Bissett

In 2007, Attorney Colleen A. Bissett became a partner of Thompson, Bissett, & Castonia. Colleen practices in a variety of areas, focusing primarily on family law, probate, and estate planning.

Acting as a Guardian ad Litem for 25 years, Colleen takes great pride in her work advocating for children and adults. She devotes her time, energy, and resources to help children and others who are often unheard and unrepresented. Serving as Guardian ad Litem is a true passion of Colleen’s.

With each case she takes, Colleen focuses on putting the needs of the client first. Colleen is a strong, compassionate attorney who has a keen understanding of the importance of each case to an individual’s life and works tirelessly to be responsive, attentive, and helpful.

Colleen has been practicing law for over 30 years in Winnebago, Green Lake, Fond du Lac, Outagamie, and Waushara Counties.
After graduating from Oshkosh North High School, Colleen attended Grinnell College. Colleen continued her education at the University of Iowa School of Law where she earned her Juris Doctorate.

In 1992, Colleen began her legal career working in the legal department at Oshkosh Corporation. After this, Colleen practiced at a local law firm for 12 years before joining Thompson, Bissett, & Castonia.

Colleen is a member of the Wisconsin Bar Association and has been invited to speak several times for Guardian ad Litem training sessions. Colleen has always been actively involved in her community through various volunteer activities.

Colleen enjoys spending time with her family, traveling, camping, reading, and watching sports.