Mike Deising Obituary: Marysville Community Remembers Beloved REALTOR, Firefighter, and Community Leader Michael Deising
The Marysville, Michigan community is mourning the unexpected passing of Michael “Mike” Deising, a highly respected real estate broker, longtime firefighter, community volunteer, and friend to countless residents across St. Clair County.
Mike Deising passed away unexpectedly on Tuesday, July 14, 2026, at the age of 54, leaving behind a legacy built on service, kindness, leadership, and an unwavering commitment to helping others.
Known by many for his unforgettable laugh, positive energy, and generous spirit, Mike was the type of person who made everyone around him feel valued. Whether he was responding to emergency calls as a firefighter, helping families find their dream homes, supporting local events, or spending time with friends and family, Mike dedicated his life to serving others.
His passing has created a deep sense of loss among the Marysville community, the firefighting family, the real estate industry, and everyone fortunate enough to know him.
Who Was Michael “Mike” Deising?
Michael Deising was a lifelong resident of Marysville, Michigan, and a proud member of the local community for more than five decades.
Born in 1972, Mike grew up in Marysville and graduated from Marysville High School with the Class of 1990. He later continued his education at St. Clair County Community College, building the foundation for a lifetime of professional achievement and community involvement.
Those who knew Mike often described him as someone who cared deeply about people. His generosity, humor, and willingness to help others became defining qualities throughout his personal and professional life.
A Lifetime Dedicated to Service: Mike Deising’s 27 Years as a Firefighter
Before becoming one of the area’s most recognized real estate professionals, Mike Deising spent nearly three decades protecting his neighbors as a firefighter with the Marysville Fire Department.
For 27 years, Mike served as a Paid-On-Call Firefighter, answering emergency calls and putting himself in harm’s way to help protect families throughout the community.
His commitment to public safety extended beyond his local department. Mike also served in leadership positions within the firefighting community, including as President of the St. Clair County Firefighters Association.
For many fellow firefighters, Mike was more than a colleague — he was a trusted brother who brought compassion, dedication, and humor to every situation.
Successful REALTOR and Broker Who Changed Lives
Mike Deising built an impressive career in real estate, becoming one of the most respected brokers in Michigan’s Blue Water area.
After beginning his real estate career in 2001, Mike quickly established himself as a trusted professional known for putting clients first.
He became a licensed broker in 2008 and later founded Deising Real Estate, eventually aligning with Epique Realty.
His accomplishments included:
- Recognition among the Top 5% of real estate professionals in the Metro Detroit area by Hour Detroit Magazine beginning in 2013.
- Leadership roles with the Eastern Thumb Association of REALTORS® (ETAR).
- Serving as ETAR President in 2015.
- Mentoring and supporting countless professionals throughout the real estate industry.
Mike’s professional philosophy was simple but powerful: “The Customer is Why.”
That belief guided his work and helped him build lasting relationships with clients, colleagues, and friends.
Community Leader Behind Marysville Hot Wheels Weekend
Outside of work and emergency service, Mike Deising was known as a passionate community organizer and supporter of local events.
He was a co-founder and driving force behind the annual Marysville Hot Wheels Weekend, an event celebrating classic cars, music, and community connection.
For Mike, the event represented everything he loved — bringing people together, celebrating friendships, and creating memories.
He was also a talented musician who enjoyed playing music with friends and sharing moments filled with laughter and joy.
Remembered as a Friend, Mentor, and Inspiration
Following news of his passing, many people remembered Mike as someone who always made time for others.
The Eastern Thumb Association of REALTORS® described him as a person who encouraged others, celebrated their success, and brought positivity wherever he went.
Friends and colleagues have shared memories of a man who could enter any room and immediately make people feel welcome.
His ability to connect with others, make people laugh, and offer support during difficult times became part of the legacy he leaves behind.
Family and Loved Ones Mourning Mike Deising’s Passing
Mike Deising leaves behind his beloved wife, Pam Deising, whom he married in December 2001.
Pam, a Registered Nurse at Lake Huron Medical Center, shared a life with Mike centered around family, faith, and service.
He was also a proud stepfather to Alex and welcomed Alex’s wife, Cheyanne, into the family.
Mike is survived by:
- His wife, Pam Deising
- His stepson, Alex (Cheyanne) of Lake Orion
- His brother, Eric Deising
- His sisters-in-law, Jennifer Relken Miller and Bonnie Deising
- Numerous cousins, extended family members, friends, firefighters, and colleagues
A large network of people across Michigan continues to mourn the loss of someone who touched countless lives.
Funeral Arrangements and Celebration of Life
Funeral details and arrangements for a celebration of Mike Deising’s life are expected to be announced by his family in the coming days.
The gathering is expected to reflect the passions that defined Mike — including his love of classic cars, music, friendship, and community.
Many who knew him are expected to come together to honor a man remembered for his generosity, dedication, and unforgettable personality.
Community Reacts to the Loss of Michael Deising
The death of Mike Deising has left Marysville residents, firefighters, REALTORS®, and friends reflecting on the impact of his life.
From protecting homes as a firefighter to helping families find homes as a broker, Mike dedicated himself to making his community stronger.
His legacy will continue through the people he helped, the friendships he built, and the countless lives he influenced.
Frequently Asked Questions About Mike Deising’s Obituary
Who was Mike Deising?
Mike Deising was a Marysville, Michigan real estate broker, firefighter, community leader, and longtime resident known for his service and dedication to others.
How old was Michael Deising when he died?
Michael “Mike” Deising was 54 years old at the time of his unexpected passing on July 14, 2026.
What was Mike Deising known for?
Mike was known for his career as a REALTOR®, his 27 years of service with the Marysville Fire Department, his community involvement, and his positive personality.
Was Mike Deising a firefighter?
Yes. Mike served as a Paid-On-Call Firefighter with the Marysville Fire Department for 27 years and held leadership roles within the St. Clair County firefighting community.
What real estate company was Mike Deising associated with?
Mike founded Deising Real Estate and later became affiliated with Epique Realty. He was recognized as a top-performing real estate professional in the region.
When will Mike Deising’s funeral services be held?
Funeral arrangements and celebration-of-life details are expected to be announced by the family.
How is the Marysville community remembering Mike Deising?
Residents, firefighters, real estate professionals, and friends are remembering Mike as a generous, hardworking, and compassionate person who dedicated his life to helping others.