Meet the Insurance Leaders of M&M Insurance Agency
About Us
We hope to get to know you better as well! Please contact our team today so we can learn how to put the insurance industry’s best service to work for you!

Chad Ostermann
Agency Principal / Licensed Agent
Chad lives in Mankato with his wife Joy and their mini golden doodle Cooper. In his free time Chad coaches High School Basketball at Maple River, loves all things sports and whenever able, escapes up north to do some fishing. Chad grew up in the insurance world as his Dad was an insurance agent/adjustor. Chad has been a licensed agent since 2005. He served as President of the Big I in 2020 & 2021.

Joy Ostermann
Agency Principal / Licensed Agent
Joy lives in Mankato with her husband Chad and their mini golden doodle Cooper. In her free time she enjoys refinishing furniture, finding treasures at estate sales, reading and taking walks with Cooper. Joy grew up in the insurance industry working with her Dad right out of high school, at the family insurance agency. Joy has been a licensed agent since 1993.

Brent Sexton
Licensed Agent
Brent joined M&M Insurance in 2016, and has been licensed since 2002. Brent lives in North Mankato with his wife, Kate, and their three boys. Brent stays busy announcing for MVL football and baseball games and serving his church. In his free time Brent enjoys watching high school sports and keeping up with his own boy’s games.

Abby Roberts
Licensed Agent
Abby was born and raised in Wells, MN and that is where she has chosen to plant her feet to raise her family. Abby and her husband Travis are parents to four daughters and one spoiled mini golden doodle. They keep busy with sporting events and school activities. In her free time she loves to camp and travel. Abby has been working in the insurance industry for 20 plus years and has been licensed since 2018. She enjoys working with our clients and always strives to find the perfect fit for everyone’s unique insurance needs. Abby has been with M&M Insurance since 2020.

Donna Yokiel
Licensed Agent
Donna has been an insurance agent for over 20 years. She likes helping people obtain the coverage they need to protect the things they love the most. Donna grew up on a farm by Wells and moved to Easton after marriage. In her free time she enjoys gardening, walking, traveling, reading and spending time with family and friends. Donna has one son, two daughters and six grandchildren that she loves to spoil! Donna has been with M&M Insurance since 2020.

Cassie Winters
Licensed Customer Service Rep
Cassie has lived in or near Good Thunder, MN her entire life. She is married to Jay and has two sons, a grandson and a golden retriever that all keep her busy! She enjoys spending time with her family and friends, traveling up north and shopping for deals. Cassie has been with M&M Insurance since 2007.

Stefanie Rath
Licensed Customer Service Rep
Stefanie, her husband Jon, and two boys Aidan& Austin live in Easton, MN. She enjoys traveling, reading, playing cards & games, and cuddling with her kitty Tootsie. Stefanie graduated from St James High School and received her BS at MSU, Mankato. Stefanie has been with M&M Insurance since 2011.

Lisa Loegering
Licensed Customer Service Rep
Lisa lives in Minnesota Lake. She has two daughters and a 4 year old Teddy Bear dog, Murphy. She enjoys spending time with her girls, friends and family, traveling up north and visiting wineries. Lisa has been with M&M Insurance since 2016.

Tammi Terbeest
Licensed Customer Service Rep
Tammi has been in the insurance industry for 21 years. She really enjoys working with insurance, you never know what the day is going to bring, there is a variety of happenings each day in the insurance world. Tammi lives in Janesville with her husband Ben and their two children, Vanessa and Zander. In their spare time you can usually find them at the kids sporting events or helping out the team. Tammi has been with M&M Insurance since 2020.

Shirley Thisted
Licensed Customer Service Rep
Shirley has been in the insurance industry since the 1980’s and has been employed by various insurance companies and agencies over the years. She has been with M&M Insurance since 2017. Shirley lives in her hometown of Kiester, MN and is married to a high school classmate. They have a beautiful spoiled cat that was rescued from the streets of Amboy. She spends her free time with her grandchildren and enjoy reading, sewing and playing the piano.

Beverly Ehlers
Customer Service Rep
Beverly has lived in Mapleton for 18 years and has a son, Zander and a Mashipoo, Banjo and a cat, Burt. Her hobbies are fishing, boating, diamond painting and reading. She loves sports, especially the Twins & Vikings. Beverly has been with M&M Insurance since 2021.

Jonah Breiter
Agent

Cooper
Cooper has been with M&M Insurance since 2019. When not checking in at the agency to get lots of attention and belly rubs, Cooper enjoys walks, squirrel chasing, and hanging out with his favorite humans Chad & Joy.
Contact M&M Insurance Agency
Mapleton Office
Wells Office
53 1st Street SW Suite 1
Wells, MN 56097
(507) 553-6644
Blue Earth Office
124 North Main Street
Blue Earth, MN 5601
(507) 526-7464
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